Relevant bibliographies by topics / CFD; Dynamics; Heat transfer

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'CFD; Dynamics; Heat transfer'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "CFD; Dynamics; Heat transfer"

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Yu, Jiu Yang, Li Jun Liu, Wei Lin, Qian Liu, Wen Hao Yang, Si Hao Nie, and Yi Wen Chen. "Numerical Simulation and Field Synergy Analysis of Flow and Heat Transfer in a Vibratory Tube." Advanced Materials Research 516-517 (May 2012): 949–53. http://dx.doi.org/10.4028/www.scientific.net/amr.516-517.949.

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The present paper focuses on the analysis of transient heat transfer and flow in a vibratory tube. The characteristics of flow and heat transfer are investigated by dynamic mesh of CFD (computational fluid dynamics) software FLUENT, the velocity and temperature distributions in a vibration cycle are analyzed by field synergy theory. The results indicate that the vibration parameters have great effect on heat transfer, and the tube vibration leads to heat transfer enhancement or reduction. Moreover, the optimum heat transfer performance inside tubes is obtained in a half-cycle when time phase is 90°.
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Giri, K. C. "Study of Thermal Performance of Closed Loop Pulsating Heat Pipe using Computational Fluid Dynamics." International Journal for Research in Applied Science and Engineering Technology 9, no. 9 (September 30, 2021): 1384–88. http://dx.doi.org/10.22214/ijraset.2021.38088.

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Abstract: Pulsating heat pipe is a heat transfer device which works on two principles that is phase transition and thermal conductivity which transfer heat effectively at different temperatures. Different factors affect the thermal performance of pulsating heat pipe. So, various researchers tried to enhance thermal conductivity by changing parameters such as working fluids, filling ratio, etc. Analysis of heat transfer characteristics of closed loop pulsating heat pipe (CLPHP) is to be carried out by using Computational Fluid Dynamics. The CLPHP is to be modelled on ANSYS Workbench, the flow of CLPHP is to be observed under specific boundary conditions by using ANSYS Fluent software. Acetone and Water are taken as the working fluid with 70% filling ratio at ambient temperature 30° C and the heat flux of 200 W is supplied at evaporator. Also, the analysis has been done to know the behaviour of PHPs under varying supply of heat flux at evaporator (inlet), the output heat flux is obtained at condenser (outlet) and find out how the heat flux is varying at different temperatures. CFD results shows the heat transfer characteristics observing the performance of CLPHP is a numerical manner. The obtained CFD results are compared with the experimental. The outputs of the simulations are plotted in graphs and outlines. Keywords: Closed Loop Pulsating Heat Pipe, CFD, Heat Transfer, ANSYS.
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Wrobel, Luiz C., Maciej K. Ginalski, Andrzej J. Nowak, Derek B. Ingham, and Anna M. Fic. "An overview of recent applications of computational modelling in neonatology." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 368, no. 1920 (June 13, 2010): 2817–34. http://dx.doi.org/10.1098/rsta.2010.0052.

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This paper reviews some of our recent applications of computational fluid dynamics (CFD) to model heat and mass transfer problems in neonatology and investigates the major heat and mass-transfer mechanisms taking place in medical devices, such as incubators, radiant warmers and oxygen hoods. It is shown that CFD simulations are very flexible tools that can take into account all modes of heat transfer in assisting neonatal care and improving the design of medical devices.
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Wichangarm, Mana, Anirut Matthujak, Thanarath Sriveerakul, Sedthawatt Sucharitpwatskul, and Sutthisak Phongthanapanich. "Simulation Study of LPG Cooking Burner." International Journal of Engineering & Technology 7, no. 3.7 (July 4, 2018): 142. http://dx.doi.org/10.14419/ijet.v7i3.7.16257.

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The objective of this paper is to numerically study the flow feature and combustion phenomena of an energy-saving cooking burner using three-dimensional computational fluid dynamics (CFD). Combustion temperatures were experimentally and numerically investigated in order to not only validate the CFD model, but also describe the combustion phenomena. From the temperature comparison, the CFD model was good agreement with the experiment, having the error of less than 5.86%. Based upon the insight from the CFD model, the high temperature of 1,286 K occurred at the middle of the burner. The high intensive vortex of the flow being enhanced the combustion intensity and the heat transfer coefficient is obvious observed near the burner head inside the ring. Therefore, it is concluded that the burner ring is the major part since it controls flame structure, high temperature region, intensive combustion region, heat loss and suitable flow feature. However, heat transfer to the vessel should be further clarified by the CFD model.
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Yin, Zhi Ren, Li Jun Yang, and Run Ze Duan. "CFD Simulation of Heat Transfer of Pulsating Gas in a Pipe." Applied Mechanics and Materials 687-691 (November 2014): 623–26. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.623.

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Numerical Simulation of pulsating flow in a pulse combustor tailpipe was performed using computational fluid dynamics (CFD) method. The flow in the pipe was characterized by periodic pulsating. The influence of this pulsating includes incomplete flow development and high level of convective heat transfer rate, and both were considered and investigated by the CFD model. Compared with the steady flow condition, results showed that the heat transfer coefficient and Nusselt number were 2.35 times higher.
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Wernik, Jacek, and Krzysztof J. Wołosz. "Study of Heat Transfer in Pneumatic Pulsator." Applied Mechanics and Materials 797 (November 2015): 320–26. http://dx.doi.org/10.4028/www.scientific.net/amm.797.320.

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The article presents selected results of research work aimed to rationalize and optimize the design of the pneumatic pulsator due to thermal conditions. Pneumatic pulsator is a device used in industry storing bulk and loose materials. It is attached to the silo, allowing their correct operation. The air friction against the inner wall of the pulsator causes the release of heat. In order to investigate the conditions of heat transfer, thermal calculations were made and then numerical simulations using Computational Fluid Dynamics (CFD) were conducted. Various fins options were examined. The objective was to maximize the heat flux discharged from the device. Temperature distribution on the surface of the fins designated by CFD corresponds to the distribution designated analytically. The results were confirmed by industrial tests. Numerical simulations mapping the heat exchange processes in a pneumatic pulsator have not yet been carried out.
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Salcudean, Martha. "COMPUTATIONAL FLUID FLOW AND HEAT TRANSFER – AN ENGINEERING TOOL." Transactions of the Canadian Society for Mechanical Engineering 15, no. 2 (June 1991): 125–35. http://dx.doi.org/10.1139/tcsme-1991-0007.

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The purpose, method and potential of computational fluid dynamics are discussed. Examples of CFD and heat transfer applications to engineering problems are described. Some limitations related to discretization, convergence rate and turbulence modelling are illustrated through examples, and possible remedies arc discussed.
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Virr, G. P., J. W. Chew, and J. Coupland. "Application of Computational Fluid Dynamics to Turbine Disk Cavities." Journal of Turbomachinery 116, no. 4 (October 1, 1994): 701–8. http://dx.doi.org/10.1115/1.2929463.

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A CFD code for the prediction of flow and heat transfer in rotating turbine disk cavities is described and its capabilities demonstrated through comparison with available experimental data. Application of the method to configurations typically found in aeroengine gas turbines is illustrated and discussed. The code employs boundary-fitted coordinates and uses the k–ε turbulence model with alternative near-wall treatments. The wall function approach and a one-equation near-wall model are compared and it is shown that there are particular limitations in the use of wall functions at low rotational Reynolds number. Validation of the code includes comparison with earlier CFD calculations and measurements of heat transfer, disk moment, and fluid velocities. It is concluded that, for this application CFD is a valuable design tool capable of predicting the flow at engine operating conditions, thereby offering the potential for reduced engine testing through enhanced understanding of the physical processes.
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Liao, L., A. K. Athienitis, L. Candanedo, K. W. Park, Y. Poissant, and M. Collins. "Numerical and Experimental Study of Heat Transfer in a BIPV-Thermal System." Journal of Solar Energy Engineering 129, no. 4 (May 15, 2007): 423–30. http://dx.doi.org/10.1115/1.2770750.

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This paper presents a computational fluid dynamics (CFD) study of a building-integrated photovoltaic thermal (BIPV∕T) system, which generates both electricity and thermal energy. The heat transfer in the BIPV∕T system cavity is studied with a two-dimensional CFD model. The realizable k‐ε model is used to simulate the turbulent flow and convective heat transfer in the cavity, including buoyancy effect and long-wave radiation between boundary surfaces is also modeled. A particle image velocimetry (PIV) system is employed to study the fluid flow in the BIPV∕T cavity and provide partial validation for the CFD model. Average and local convective heat transfer coefficients are generated with the CFD model using measured temperature profile as boundary condition. Cavity temperature profiles are calculated and compared to the experimental data for different conditions and good agreement is obtained. Correlations of convective heat transfer coefficients are generated for the cavity surfaces; these coefficients are necessary for the design and analysis of BIPV∕T systems with lumped parameter models. Local heat transfer coefficients, such as those presented, are necessary for prediction of temperature distributions in BIPV panels.
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Flamarz, Sherko. "Computational Study of Heat Transfer Behavior in Fluid-Solid Fluidized Beds." Sulaimani Journal for Engineering Sciences 7, no. 3 (December 30, 2020): 25–41. http://dx.doi.org/10.17656/sjes.10132.

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Heat transfer in fluid-solid fluidized beds is investigated using a combined of computational fluid dynamics (CFD) and discrete element method (DEM) approach, incorporated with a thermal model. The approach has taken into account almost all the mechanisms in heat transfer in fluidized beds. A comparison and validation of hydrodynamic and thermal data of fluidized bed obtained using CFD-DEM thermal approach with experimental and numerical results data in the literature is carried out. The simulations results reveal a good thermal steady state during the simulation time for calculating the thermal behaviors of fluidized beds like; the mean particle temperature, bed porosity, heat transfer coefficient and mean particle Reynolds number. The simulations results are showed a good agreement and consistency with the experimental and numerical data in the literatures. Thus, the integration of combined CFD-DEM with the thermal model is a step toward for the prediction, development the heat transfer efficiency in fluid-solid system, and the decrease of energy consumption of the industrial applications.
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Dissertations / Theses on the topic "CFD; Dynamics; Heat transfer"

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Walker, Patrick Gareth Chemical Engineering &amp Industrial Chemistry UNSW. "CFD modeling of heat exchange fouling." Awarded by:University of New South Wales. Chemical Engineering & Industrial Chemistry, 2005. http://handle.unsw.edu.au/1959.4/22385.

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Heat exchanger fouling is the deposition of material onto the heat transfer surface causing a reduction in thermal efficiency. A study using Computational Fluid Dynamics (CFD) was conducted to increase understanding of key aspects of fouling in desalination processes. Fouling is a complex phenomenon and therefore this numerical model was developed in stages. Each stage required a critical assessment of each fouling process in order to design physical models to describe the process???s intricate kinetic and thermodynamic behaviour. The completed physical models were incorporated into the simulations through employing extra transport equations, and coding additional subroutines depicting the behaviour of the aqueous phase involved in the fouling phenomena prominent in crystalline streams. The research objectives of creating a CFD model to predict fouling behaviour and assess the influence of key operating parameters were achieved. The completed model of the key crystallisation fouling processes monitors the temporal variation of the fouling resistance. The fouling rates predicted from these results revealed that the numerical model satisfactorily reproduced the phenomenon observed experimentally. Inspection of the CFD results at a local level indicated that the interface temperature was the most influential operating parameter. The research also examined the likelihood that the crystallisation and particulate fouling mechanisms coexist. It was found that the distribution of velocity increased the likelihood of the particulate phase forming within the boundary layer, thus emphasizing the importance of differentiating between behaviour within the bulk and the boundary layer. These numerical results also implied that the probability of this composite fouling was greater in turbulent flow. Finally, supersaturation was confirmed as the key parameter when precipitation occurred within the bulk/boundary layer. This investigation demonstrated the advantages of using CFD to assess heat exchanger fouling. It produced additional physical models which when incorporated into the CFD code adequately modeled key aspects of the crystallisation and particulate fouling mechanisms. These innovative modelling ideas should encourage extensive use of CFD in future fouling investigations. It is recommended that further work include detailed experimental data to assist in defining the key kinetic and thermodynamic parameters to extend the scope of the required physical models.
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Sargison, Jane Elizabeth. "Development of a novel film cooling hole geometry." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365427.

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Soria, Guerrero Manel. "Parallel multigrid algorithms for computational fluid dynamics and heat transfer." Doctoral thesis, Universitat Politècnica de Catalunya, 2000. http://hdl.handle.net/10803/6678.

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The main purpose of the dissertation is to contribute to the development of numerical techniques for computational heat transfer and fluid flow, suitable for low cost (loosely coupled) parallel computers. It is focused on implicit integration schemes, using finite control volumes with multigrid (MG) algorithms.

Natural convection in closed cavities is used as a problem model to introduce different aspects related with the integration of the incompressible Navier-Stokes equations, such as the solution of the pressure correction (or similar) equations that is the bottleneck of the algorithms for parallel computers. The main goal of the dissertation has been to develop new algorithms to advance in the solution of this problem rather than to implement a complete parallel CFD code.

An overview of different sequential multigrid algorithms is presented, pointing out the difference between geometric and algebraic multigrid. A detailed description of segregated ACM is given. The direct simulation of a turbulent natural convection flow is presented as an application example. A short description of the coupled ACM variant is given.

Background information of parallel computing technology is provided and the the key aspects for its efficient use in CFD are discussed. The limitations of low cost, loosely coupled cost parallel computers (high latency and low bandwidth) are introduced. An overview of different control-volume based PCFD and linear equation solvers is done. As an example, a code to solve reactive flows using Schwartz Alternating Method that runs particularly well on Beowulf clusters is given.

Different alternatives for latency-tolerant parallel multigrid are examined, mainly the DDV cycle proposed by Brandt and Diskin in a theoretical paper. One of its main features is that, supressing pre-smoothing, it allows to reduce the each-to-neighbours communications to one per MG iteration. In the dissertation, the cycle is extended to two-dimensional domain decompositions. The effect of each of its features is separately analyzed, concluding that the use of a direct solver for the coarsest level and the overlapping areas are important aspects. The conclusion is not so clear respect to the suppression of the pre-smoothing iterations.

A very efficient direct method to solve the coarser MG level is needed for efficient parallel MG. In this work, variant of the Schur complement algorithm, specific for relatively small, constant matrices has been developed. It is based on the implicit solution of the interfaces of the processors subdomains. In the implementation proposed in this work, a parallel evaluation and storage of the inverse of the interface matrix is used. The inner nodes of each domain are also solved with a direct algorithm. The resulting algorithm, after a pre-processing stage, allows a very efficient solution of pressure correction equations of incompressible flows in loosely coupled parallel computers.

Finally, all the elements presented in the work are combined in the DDACM algorithm, an algebraic MG equivalent to the DDV cycle, that is as a combination of a parallel ACM algorithm with BILU smoothing and a specific version of the Schur complement direct solver. It can be treated as a black-box linear solver and tailored to different parallel architectures.

The parallel algorithms analysed (different variants of V cycle and DDV) and developed in the work (a specific version of the Schur complement algorithm and the DDACM multigrid algorithm) are benchmarked using a cluster of 16 PCs with a switched 100 Mbits/s network.

The general conclusion is that the algorithms developed are suitable options to solve the pressure correction equation, that is the main bottleneck for the solution of implicit flows on loosely coupled parallel computers.
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Adamic, Raymond Matthew. "CFD and Heat Transfer Models of Baking Bread in a Tunnel Oven." Cleveland State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=csu1355521233.

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Detaranto, Michael Francis. "CFD analysis of airflow patterns and heat transfer in small, medium, and large structures." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/50813.

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Designing buildings to use energy more efficiently can lead to lower energy costs, while maintaining comfort for occupants. Computational fluid dynamics (CFD) can be utilized to visualize and simulate expected flows in buildings and structures. CFD gives architects and designers the ability to calculate the velocity, pressure, and heat transfer within a building. Previous research has not modeled natural ventilation situations that challenge common design rules of thumb used for cross-ventilation and single-sided ventilation. The current study uses a commercial code (FLUENT) to simulate cross-ventilation in simple structures and analyzes the flow patterns and heat transfer in the rooms. In the Casa Giuliana apartment and the Affleck house, this study simulates passive cooling in spaces well-designed for natural ventilation. Heat loads, human models, and electronics are included in the apartment to expand on prior research into natural ventilation in a full-scale building. Two different cases were simulated. The first had a volume flow rate similar to the ambient conditions, while the second had a much lower flow rate that had an ACH of 5, near the minimum recommended value Passive cooling in the Affleck house is simulated and has an unorthodox ventilation method; a window in the floor that opens to an exterior basement is opened along with windows and doors of the main floor to create a pressure difference. In the Affleck house, two different combinations of window and door openings are simulated to model different scenarios. Temperature contours, flow patterns, and the air changes per hour (ACH) are explored to analyze the ventilation of these structures.
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Gifford, Brandon T. "Analysis of Heat Transfer in a Thermoacoustic Stove using Computational Fluid Dynamics." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1338254016.

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Nijemeisland, Michiel. "Verification Studies of Computational Fluid Dynamics in Fixed Bed Heat Transfer." Digital WPI, 2000. https://digitalcommons.wpi.edu/etd-theses/318.

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Computational Fluid Dynamics (CFD) is one of the fields that has strongly developed since the recent development of faster computers and numerical modeling. CFD is also finding its way into chemical engineering on several levels. We have used CFD for detailed modeling of heat and mass transfer in a packed bed. One of the major questions in CFD modeling is whether the computer model describes reality well enough to consider it a reasonable alternative to data collection. For this assumption a validation of CFD data against experimental data is desired. We have developed a low tube to particle, structured model for this purpose. Data was gathered both with an experimental setup and with an identical CFD model. These data sets were then compared to validate the CFD results. Several aspects in creating the model and acquiring the data were emphasized. The final result in the simulation is dependent on mesh density (model detail) and iteration parameters. The iteration parameters were kept constant so they would not influence the method of solution. The model detail was investigated and optimized, too much detail delays the simulation unnecessarily and too little detail will distort the solution. The amount of data produced by the CFD simulations is enormous and needs to be reduced for interpretation. The method of data reduction was largely influenced by the experimental method. Data from the CFD simulations was compared to experimental data through radial temperature profiles in the gas phase collected directly above the packed bed. It was found that the CFD data and the experimental data show quantitatively as well as qualitatively comparable temperature profiles, with the used model detail. With several systematic variances explained CFD has shown to be an ample modeling tool for heat and mass transfer in low tube to particle (N) packed beds.
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Higgins, K. "Comparison of engineering correlations for predicting heat transfer in zero-pressure-gradient compressible boundary layers with CFD and experimental data." Fishermans Bend, Victoria : Defence Science and Technology Organisation, 2008. http://hdl.handle.net/1947/9653.

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Srinivasan, Raghavan. "CFD Heat Transfer Simulation of the Human Upper Respiratory Tract for Oronasal Breathing Condition." Thesis, North Dakota State University, 2011. https://hdl.handle.net/10365/29310.

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In this thesis. a three dimensional heat transfer model of heated airflow through the upper human respiratory tract consisting of nasal, oral, trachea, and the first two generations of bronchi is developed using computational fluid dynamics simulation software. Various studies have been carried out in the literature investigating the heat and mass transfer characteristics in the upper human respiratory tract, and the study focuses on assessing the injury taking place in the upper human respiratory tract and identifying acute tissue damage based on level of exposure. The model considered is for the simultaneous oronasal breathing during the inspiration phase with high volumetric flow rate of 90/liters minute and a surrounding air temperature of 100 degrees centigrade. The study of the heat and mass transfer, aerosol deposition and flow characteristics in the upper human respiratory tract using computational fluid mechanics simulation requires access to a two dimensional or three dimensional model for the human respiratory tract. Depicting an exact model is a complex task since it involves the prolonged use of imaging devices on the human body. Hence a three dimensional geometric representation of the human upper respiratory tract is developed consisting of nasal cavity, oral cavity, nasopharynx, pharynx, oropharynx, trachea and first two generations of the bronchi. The respiratory tract is modeled circular in cross-section and varying diameter for various portions as identified in this study. The dimensions are referenced from the literature herein. Based on the dimensions, a simplified model representing the human upper respiratory tract is generated.This model will be useful in studying the flow characteristics and could assist in treatment of injuries to the human respiratory tract as well as help optimize drug delivery mechanism and dosages. Also a methodology is proposed to measure the characteristic dimension of the human nasal and oral cavity at the inlet/outlet points which are classified as internal measurements.
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Martinez, Luis Iñaki. "Investigation of CFD conjugate heat transfer simulation methods for engine components at SCANIA CV AB." Thesis, Linköpings universitet, Mekanisk värmeteori och strömningslära, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-138758.

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The main objective of this Master Thesis project is the development of a new methodology to perform Computational Fluid Dynamics (CFD) conjugate heat transfer simulations for internal combustion engines, at the Fluid and Combustion Simulations Department (NMGD) at Scania CV AB, Södertalje, Sweden. This new method allows to overcome the drawbacks identified in the former methodology, providing the ability to use the more advanced polyhedral mesh type to generate good quality grids in complex geometries like water cooling jackets, and integrating all the different components of the engine cylinder in one unique multi-material mesh. In the method developed, these advantages can be used while optimizing the process to perform the simulations, and obtaining improved accuracy in the temperature field of engine components surrounding the water cooling jacket when compared to the experimental data from Scania CV AB tests rigs. The present work exposes the limitations encountered within the former methodology and presents a theoretical background to explain the physics involved, describing the computational tools and procedures to solve these complex fluid and thermal problems in a practical and cost-effective way, by the use of CFD.A mesh sensitivity analysis performed during this study reveals that a mesh with low y+ values, close to 1 in the water cooling jacket, is needed to obtain an accurate temperature distribution along the cylinder head, as well as to accurately identify boiling regions in the coolant domain. Another advantage of the proposed methodology is that it provides new capabilities like the implementation of thermal contact resistance in periodical contact regions of the engine components, improving the accuracy of the results in terms of temperature profiles of parts like valves, seats and guides. The results from this project are satisfactory, providing a reliable new methodology for multi-material thermal simulations, improving the efficiency of the work to be performed in the NMGD department, with a better use of the available engineering and computational resources, simplifying all the stages of multi-material projects, from the geometry preparation and meshing, to the post-processing tasks.
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Books on the topic "CFD; Dynamics; Heat transfer"

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National Heat Transfer Conference (29th 1993 Atlanta, Ga.). Solutions to CFD benchmark problems in electronic packaging: Presented at the 29th National Heat Transfer Conference, Atlanta, Georgia, August 8-11, 1993. New York, N.Y: American Society of Mechanical Engineers, 1993.

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Tu, Jiyuan. Computational fluid dynamics: A practical approach. Amsterdam: Butterworth-Heinemann, 2008.

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Willmott, A. John. Dynamics of regenerative heat transfer. New York: Taylor & Francis, 2002.

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Cebeci, Tuncer. Convective heat transfer. 2nd ed. Long Beach, CA: Horizons Pub., 2002.

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Tuncer, Cebeci, and Cebeci Tuncer, eds. Convective heat transfer. 2nd ed. Long Beach, Calif: Horizons Pub., 2002.

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Fluid dynamics and heat transfer of turbomachinery. New York: Wiley, 1996.

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Lakshminarayana, Budugur. Fluid Dynamics and Heat Transfer of Turbomachinery. Hoboken, NJ, USA: John Wiley & Sons, Inc., 1995. http://dx.doi.org/10.1002/9780470172629.

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Samarskiĭ, A. A. Computational heat transfer. Chichester: Wiley, 1995.

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Samarskiĭ, A. A. Computational heat transfer. Chichester: John Wiley & Sons, 1995.

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Dorfman, A. Sh. Conjugate problems in convective heat transfer. Boca Raton, FL: CRC Press, 2009.

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Book chapters on the topic "CFD; Dynamics; Heat transfer"

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Lee, Sun, Gwang Hoon Rhee, and Seo Young Kim. "Heat Transfer Correlations and Pressure Drop for Cross-Cut Heat Sinks Using CFD: Technical Notes." In Computational Fluid Dynamics 2008, 811–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01273-0_112.

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Perakis, Nikolaos, and Oskar J. Haidn. "Experimental and Numerical Investigation of CH$$_4$$/O$$_2$$ Rocket Combustors." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 359–79. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53847-7_23.

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Abstract The experimental investigation of sub-scale rocket engines gives significant information about the combustion dynamics and wall heat transfer phenomena occurring in full-scale hardware. At the same time, the performed experiments serve as validation test cases for numerical CFD models and for that reason it is vital to obtain accurate experimental data. In the present work, an inverse method is developed able to accurately predict the axial and circumferential heat flux distribution in CH$$_4$$/O$$_2$$ rocket combustors. The obtained profiles are used to deduce information about the injector-injector and injector-flame interactions. Using a 3D CFD simulation of the combustion and heat transfer within a multi-element thrust chamber, the physical phenomena behind the measured heat flux profiles can be inferred. A very good qualitative and quantitative agreement between the experimental measurements and the numerical simulations is achieved.
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Joardder, Mohammad U. H., Washim Akram, and Azharul Karim. "CFD Modelling of Drying Phenomena." In Heat and Mass Transfer Modelling During Drying, 155–66. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9780429461040-9.

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Fujikawa, Shigeo, Takeru Yano, and Masao Watanabe. "Dynamics of Spherical Vapor Bubble." In Heat and Mass Transfer, 143–210. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-18038-5_5.

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Andrei, Neculai. "Heat Transfer and Fluid Dynamics." In Nonlinear Optimization Applications Using the GAMS Technology, 223–45. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4614-6797-7_8.

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Chiodi, Marco. "3D-CFD-Modeling of the Wall Heat-Transfer." In An Innovative 3D-CFD-Approach towards Virtual Development of Internal Combustion Engines, 145–73. Wiesbaden: Vieweg+Teubner, 2011. http://dx.doi.org/10.1007/978-3-8348-8131-1_10.

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Yu, Kuo-Tsong, and Xigang Yuan. "Related Field (I): Fundamentals of Computational Fluid Dynamics." In Heat and Mass Transfer, 1–17. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-53911-4_1.

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Telrandhe, Rupesh G., and Ashish Choube. "Numerical and CFD Analysis of Joints in Flow-Through Pipe." In Numerical Heat Transfer and Fluid Flow, 409–16. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1903-7_47.

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Sreedhar, T., B. Nageswara Rao, and D. Vinay Kumar. "Heat Transfer Enhancement with Different Nanofluids in Heat Exchanger by CFD." In Lecture Notes in Mechanical Engineering, 387–97. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9931-3_38.

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Molerus, O., and K. E. Wirth. "Fluid dynamics of circulating fluidized beds." In Heat Transfer in Fluidized Beds, 96–110. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5842-8_13.

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Conference papers on the topic "CFD; Dynamics; Heat transfer"

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Shiva Prasad, B. G. "Benchmarking in CFD." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56746.

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CFD use is spreading fast to all industrial and non-industrial sectors. The progress in the science of Computational fluid Dynamics is not keeping pace with its own technological progress, particularly with reference to applications. Mathematical modeling of fluid flows in most cases is an art which depends on intuition. To gain more credibility in the complex computations of flows in modern machinery, it is not just sufficient to debate about validation, but is becoming increasingly necessary to at least start debating about establishing standards for development, distribution and use of CFD codes. Otherwise, not only the nickname of Colorful Fluid Dynamics might become more permanent, but the rate of growth of the technology of Computational Fluid Dynamics and the development of it’s underlying science might be hampered. This paper discusses the problems in application of CFD for industrial flows and suggests possible solutions and the need for unified action by the CFD community including the concept of ‘Global Benchmarking’.
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Schindler, Alexander Philipp, Stefan Brack, and Jens von Wolfersdorf. "Coupled FE-CFD analysis of transient conjugate heat transfer." In European Conference on Turbomachinery Fluid Dynamics and Thermodynamics. European Turbomachinery Society, 2019. http://dx.doi.org/10.29008/etc2019-158.

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Jalili, V., C. Bailey, and M. K. Patel. "A Computational Fluid Dynamics (CFD) Analsysis of the Vacuum De-Zincing Process." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47586.

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This is a novel application of Computational Fluid Dynamics (CFD), in the vacuum De-zincing process. The complete modeling process would involve the solution of the following equations: a) Navier-Stokes Equations; b) The Energy Equation; c) The Solution of the Species Concentration. The aim of this research as a novel approach in vacuum Dezincing process has been to gain an understanding in terms of the actual complicated physics involved de-zincing process such, as phase change and solidification. The results in this paper have contributed to a better understanding of the vacuum De-zincing process, hence identifying parameters, which would aid the efficient recovery of the zinc from the molten metal bath.
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Zhao, Xiang, Jun Wang, and Sijun Zhang. "Parallel CFD-DEM for Fluid-Particle Systems." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56276.

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This paper presents numerical methods and parallel algorithms for modeling the fluid-particle flow in gas fluidization of multi-sized particles. This work involves combined Computational Fluid Dynamics (CFD) and Discrete Element Method (DEM) to describe continuum flow of fluids and discrete flow of solid particles, respectively. Such simulations are extremely computationally intensive. To meet the challenge and produce high-performance, state-of-the-art computational tools capable of simulating the industrial fluid-particle systems, the parallel computing techniques are used with special emphasis of domain decomposition, dynamic load balancing and parallel algorithm. A study of the implementation of a parallel algorithm is also presented, together with performance measurements on PC cluster machines. The results obtained validate not only the parallel algorithm, but also the potential role of such computer systems in industrial fluid-particle flow simulations.
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Zhou, Peng, Yongqi Xu, and Xiuling Wang. "CFD Simulation of Pool Boiling for Liquid Nitrogen." In ASME 2017 Heat Transfer Summer Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/ht2017-4952.

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Computational Fluid Dynamics model is developed to simulate pool boiling for liquid nitrogen. Instead of using the user defined function (UDF), the evaporation-condensation model is adopted to take care of the energy term when phase change happens. Test cases with different excess temperature are simulated to study the important heat transfer features in different boiling regimes — free convection boiling, nucleate boiling, transition boiling and film boiling. The heat flux for each case is calculated. Simulation results are compared with the experimental and numerical data in the literature, good agreements are observed. By using the evaporation-condensation model, the pool boiling procedure is successfully simulated, and the complex physical process such as the pool vaporization can be clearly analyzed. At last, some comments and improvements are discussed to increase the accuracy of the simulation.
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Tolpadi, Anil K., James A. Tallman, and Lamyaa El-Gabry. "Turbine Airfoil Heat Transfer Predictions Using CFD." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68051.

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Conventional heat transfer design methods for turbine airfoils use 2-D boundary layer codes (BLC) combined with empiricism. While such methods may be applicable in the mid span of an airfoil, they would not be very accurate near the end-walls and airfoil tip where the flow is very three-dimensional (3-D) and complex. In order to obtain accurate heat transfer predictions along the entire span of a turbine airfoil, 3-D computational fluid dynamics (CFD) must be used. This paper describes the development of a CFD based design system to make heat transfer predictions. A 3-D, compressible, Reynolds-averaged Navier-Stokes CFD solver with k-ω turbulence modeling was used. A wall integration approach was used for boundary layer prediction. First, the numerical approach was validated against a series of fundamental airfoil cases with available data. The comparisons were very favorable. Subsequently, it was applied to a real engine airfoil at typical design conditions. A discussion of the features of the airfoil heat transfer distribution is included.
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Zhou, Peng, Xiuling Wang, Ulises Morales, and Xiaoli Yang. "Integration of Virtual Reality and CFD Techniques for Thermal Fluid Education." In ASME 2017 Heat Transfer Summer Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/ht2017-4793.

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Engineering courses such as thermodynamics, fluid mechanics and heat transfer always involve many abstract math, physics concepts and equations — which are difficult to teach and understand. As fundamental courses in engineering programs, they are sometimes taught in big class size — where students may not receive adequate attention and assistance from instructors. To improve the teaching and learning efficiency, we proposed to develop virtual reality based interactive modules for learning computational fluid dynamics. In this paper, case-study learning module is demonstrated for conduction heat transfer. The programming languages of C# and Unity3D were used for the software development. Computational fluid dynamics simulation results obtained from ANSYS/FLUENT were incorporated in the program. The program has the integrated modules of mobility, interactivity, and controllability for the 3D modeling and simulations. Each module was developed separately for facilitating the program management, extension, and upgrades in the future. The developed interactive programs, incorporating rich, interactive, and engaging learning contexts, will help students gain and apply knowledge to solve real-world problems in mechanical engineering.
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Champion, Edward R. "Time-to-Market: A Practical CFD Application in the Telecom Industry." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47041.

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This paper summarizes the practical use of CFD (Computational Fluid Dynamics) using a commercially available package, FLOTHERM [1], in a tight and highly competitive marketplace to produce a functional pre-production piece of telecom gear with no prototyping for thermal issues. The paper highlights the direct production, noprototype, analytical thermal performance verification of a small CMTS (Cable Modem Termination System) used in telecom applications.
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Fu, Dong, Bin Wu, Guoheng Chen, John Moreland, Fengguo Tian, Yuzhu Hu, and Chenn Q. Zhou. "Virtual Reality Visualization of CFD Simulation for Iron/Steelmaking Processes." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-23180.

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Computational Fluid Dynamics (CFD) has become a powerful simulation technology used in iron/steelmaking industrial applications for process design and optimization to save energy. In this paper, a Virtual Engineering (VE) application is presented that uses Virtual Reality (VR) to visualize CFD results in a tracked immersive projection system. The interactive Virtual Reality (VR) was specifically adapted for CFD post-processing to better understand CFD results and more efficiently communicate with non-CFD experts. The VE application has been utilized to make an assessment in terms of visualization and optimization for steelmaking furnaces. The immersive system makes it possible to gain a quick, intuitive understanding of the flow characteristics and distributions of pressure, temperature, and species properties in the industrial equipment. By introducing the virtual engineering environment, the value of CFD simulations has been greatly enhanced to allow engineers to gain much needed process insights for the design and optimization of industrial processes.
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Rashidi, Manoochehr, and Ali Reza Noori. "CFD Simulation of Heat Transfer in SI Engine Combustion Chamber." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47063.

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The investigation reported in this paper includes the variation of transient and local heat transfer coefficient and heat flux in the combustion chamber of a spark ignition (SI) engine. Heat transfer characteristics are obtained from the Kiva-3v CFD (Computational Fluid Dynamics) code. Instantaneous results including the variations of mean heat transfer coefficient on the piston surface, combustion chamber, and wall of the cylinder are presented. Moreover, variations of the local heat transfer coefficient and heat flux along a centerline on the piston as well as a few locations on the combustion chamber surface are shown. It is illustrated that maximum heat transfer coefficient on the piston and combustion chamber surfaces varies with location and also it is observed that the initial high rate of increase of heat flux at any position is related to the instant of flame arrival at that position. In this work, the major focus is on the determination of the locations where heat flux and heat transfer are maximum.
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Reports on the topic "CFD; Dynamics; Heat transfer"

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Author, Not Given. 3D CFD Electrochemical and Heat Transfer Model of an Integrated-Planar Solid Oxide Electrolysis Cells. Office of Scientific and Technical Information (OSTI), November 2008. http://dx.doi.org/10.2172/953673.

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FRANCIS JR., NICHOLAS D., MICHAEL T. ITAMURA, STEPHEN W. WEBB, and DARRYL L. JAMES. CFD Modeling of Natural Convection Heat Transfer and Fluid Flow in Yucca Mountain Project (YMP) Enclosures. Office of Scientific and Technical Information (OSTI), March 2003. http://dx.doi.org/10.2172/809609.

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Blackwell, B. F., R. J. Cochran, R. E. Hogan, P. A. Sackinger, and P. R. Schunk. Moving/deforming mesh techniques for computational fluid dynamics and heat transfer. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/419077.

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Vegendla, Prasad, Adrian Tentner, Dillon Shaver, Aleks Obabko, and Elia Merzari. DEVELOPMENT AND VALIDATION OF A CONJUGATE HEAT TRANSFER MODEL FOR THE TWO-PHASE CFD CODE NEK-2P. Office of Scientific and Technical Information (OSTI), September 2019. http://dx.doi.org/10.2172/1570458.

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Chang, H. C. Wave dynamics on falling films and its effects on heat/mass transfer. Office of Scientific and Technical Information (OSTI), December 1992. http://dx.doi.org/10.2172/6852503.

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T. Hadgu, S. Webb, and M. Itamura. Comparison of CFD Natural Convection and Conduction-only Models for Heat Transfer in the Yucca Mountain Project Drifts. Office of Scientific and Technical Information (OSTI), February 2004. http://dx.doi.org/10.2172/837568.

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Hayes, Andrew M., Aly H. Shaaban, Jamil A. Khan, Ian G. Spearing, and Reza Salavani. An Experimental, Numerical, and CFD Investigation into the Heat Transfer and Flow Characteristics in Porous Media Using a Thermal Non-Equilibrium Model. Fort Belvoir, VA: Defense Technical Information Center, October 2005. http://dx.doi.org/10.21236/ada450372.

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Takeuchi, Yoshitaka, Kenta Akimoto, Takashi Noda, Yu Nozawa, and Tomohisa Yamada. Development of Techniques for Improving Piston Cooling Performance (Second Report)~Oil Movement and Heat Transfer Simulation in Piston Cooling Channel With CFD. Warrendale, PA: SAE International, May 2005. http://dx.doi.org/10.4271/2005-08-0373.

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Tzanos, C. P., and B. Dionne. Computational fluid dynamics analyses of lateral heat conduction, coolant azimuthal mixing and heat transfer predictions in a BR2 fuel assembly geometry. Office of Scientific and Technical Information (OSTI), May 2011. http://dx.doi.org/10.2172/1018507.

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Robert E. Spall, Barton Smith, and Thomas Hauser. validation and Enhancement of Computational Fluid Dynamics and Heat Transfer Predictive Capabilities for Generation IV Reactor Systems. Office of Scientific and Technical Information (OSTI), December 2008. http://dx.doi.org/10.2172/944056.

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