Relevant bibliographies by topics / Jet impingement heat transfer

Academic literature on the topic 'Jet impingement heat transfer'

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Published: 6 September 2023

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Journal articles on the topic "Jet impingement heat transfer"

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Shital Yashwant Waware, Sandeep Sadashiv Kore, and Suhas Prakashrao Patil. "Heat Transfer Enhancement in Tubular Heat Exchanger with Jet Impingement: A Review." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 101, no. 2 (January 20, 2023): 8–25. http://dx.doi.org/10.37934/arfmts.101.2.825.

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Heat exchanger (HE) is a thermal device used to transfer heat from higher fluid temperatures to lower fluid temperatures. There is an increasing need to increase the efficiency of HEs, develop a wide range of investigations to increase heat transfer rate (HTR), and reduce the size and cost of industrial apparatus in accordance. The current work's goal is to review articles that discuss the main types of tubular heat HEs, factors that affect HTR, and jet impingement in tubular HEs, which are considered among the equipment used in various industries. Researchers have proposed several models of tubular HEs. Many industrial processes, cooling technology, refrigeration equipment, sustainable energy applications, and other fields use tubular HEs. Jet impingement cooling is assumed to be a very efficient method for increasing HT rate, and it has many uses in both the scientific and industrial spheres. This paper's goal is to present an overview of various techniques for improving HT in relation to jet impingement cooling and to define the area of potential future research. This study focuses on a variety of experimental and numerical studies to examine the HT and hydrodynamic behaviour of jet impingement over a range of Reynolds numbers, target surface shapes, distances from the jet plate or nozzle to the target plate, extended jet holes, and the use of nanofluids. Both single jet and multiple jet impingements cooling are included in the current work. The summary of jet impingement for various applications keeps the spotlight on new methods for enhancing HT.
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Su, Zhong-Gen, Wei Zheng, and Zhen-Dong Zhang. "Study on diesel cylinder-head cooling using nanofluid coolant with jet impingement." Thermal Science 19, no. 6 (2015): 2025–37. http://dx.doi.org/10.2298/tsci140509118z.

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To improve the heat-transfer performance of a diesel-engine cylinder head, nanofluid coolant as a new fluid was investigated, and jet impingement technology was then used to study on how to better improve heat-transfer coefficient at the nose bridge area in the diesel-engine cylinder head. Computational fluid dynamic simulation and experiments results demonstrated that using the same jet impingement parameters, the different volume shares of nanofluids showed better cooling effect than traditional coolant, but the good effect of the new cooling method was unsuitable for high volume share of nanofluid. At the same volume share of nanofluid, different jet impingement parameters such as jet angles showed different heat-transfer performance. This result implies that a strong association exists between jet impingement parameters and heat-transfer coefficient. The increase in coolant viscosity of the nanofluid coolant using jet impingement requires the expense of more drive-power cost.
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Qiu, Shuxia, Peng Xu, Liping Geng, Arun Mujumdar, Zhouting Jiang, and Jinghua Yang. "Enhanced heat transfer characteristics of conjugated air jet impingement on a finned heat sink." Thermal Science 21, no. 1 Part A (2017): 279–88. http://dx.doi.org/10.2298/tsci141229030q.

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Air jet impingement is one of the effective cooling techniques employed in micro-electronic industry. To enhance the heat transfer performance, a cooling system with air jet impingement on a finned heat sink is evaluated via the computational fluid dynamics method. A two-dimensional confined slot air impinging on a finned flat plate is modeled. The numerical model is validated by comparison of the computed Nusselt number distribution on the impingement target with published experimental results. The flow characteristics and heat transfer performance of jet impingement on both of smooth and finned heat sinks are compared. It is observed that jet impingement over finned target plate improves the cooling performance significantly. A dimensionless heat transfer enhancement factor is introduced to quantify the effect of jet flow Reynolds number on the finned surface. The effect of rectangular fin dimensions on impingement heat transfer rate is discussed in order to optimize the cooling system. Also, the computed flow and thermal fields of the air impingement system are examined to explore the physical mechanisms for heat transfer enhancement.
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Popiel, C. O., and L. Boguslawski. "Local Heat Transfer From a Rotating Disk in an Impinging Round Jet." Journal of Heat Transfer 108, no. 2 (May 1, 1986): 357–64. http://dx.doi.org/10.1115/1.3246929.

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The results of an experimental investigation of local convective heat transfer from the surface of a rotating disk in an impinging free round air jet, issuing from a long tube, are reported. Using a transient heat transfer method applied to the ring-shaped h-calorimeter (as a single lumped capacitance element) measurements of convective heat transfer rates were made for five impingement radius (fixed) to tube diameter ratios for a range of rotational and jet Reynolds numbers. In the pure impingement-dominated regime, where the rotation of the disk does not show an effect on heat transfer, the velocity ratio is ur/uj ≤ (1 − 2 × 10−4 Re2/3) (1 − 0.18 r/d), where ur = tangential velocity of the disk at the jet impingement radius r, uj = average exit velocity of jet, and d = jet tube diameter. In this regime, the local heat transfer on the rotating disk can be strongly enhanced by jet impingement. For ur/uj ⪞ 5, the effect of the jet impingement on heat transfer can be neglected. The discussion of the heat transfer results has been supported by smoke flow visualization.
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Hussain, Liaqat, Muhammad Mahabat Khan, Manzar Masud, Fawad Ahmed, Zabdur Rehman, Łukasz Amanowicz, and Krzysztof Rajski. "Heat Transfer Augmentation through Different Jet Impingement Techniques: A State-of-the-Art Review." Energies 14, no. 20 (October 9, 2021): 6458. http://dx.doi.org/10.3390/en14206458.

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Jet impingement is considered to be an effective technique to enhance the heat transfer rate, and it finds many applications in the scientific and industrial horizons. The objective of this paper is to summarize heat transfer enhancement through different jet impingement methods and provide a platform for identifying the scope for future work. This study reviews various experimental and numerical studies of jet impingement methods for thermal-hydraulic improvement of heat transfer surfaces. The jet impingement methods considered in the present work include shapes of the target surface, the jet/nozzle–target surface distance, extended jet holes, nanofluids, and the use of phase change materials (PCMs). The present work also includes both single-jet and multiple-jet impingement studies for different industrial applications.
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Wang, Longfei, Fengbo Wen, Songtao Wang, Xun Zhou, and Zhongqi Wang. "Application and Design of Multi-Impingement Cooling Channel in Turbine Blade Trail Edge." International Journal of Turbo & Jet-Engines 37, no. 3 (August 27, 2020): 241–56. http://dx.doi.org/10.1515/tjj-2017-0023.

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AbstractThe numerical simulations are used to conduct the comparative study of pin-fins cooling channel and multi-impingement cooling channel on the heat transfer and flow, and to design the multi-impingement channel through the parameters of impinging distance and impingement-jet-plate thickness. The Reynolds number ranges from 1e4 to 6e4. The dimensionless impinging distance is 0.60, 1.68, 2.76, respectively, and the dimensionless impinging-jet-thickness is 0.5, 1.0, 1.5, respectively. The endwall surface, pin-fins surface, impinging-jet-plate surface are the three object surfaces to investigate the channel heat transfer performance. The heat transfer coefficient $h$ and augmentation factor $Nu/N{u_0}$ are selected to measure the surface heat transfer, and the friction coefficient $f$ is chosen to evaluate the channel flow characteristics. The impinging-jet-plate surface owns higher heat transfer coefficient and larger area than pin-fins surface, which are the main reasons to improve the heat transfer performance of multi-impingement cooling channel. Reducing the impinging distance can improve the endwall surface heat transfer obviously and enhance impingement plate surface heat transfer to some extent, decreasing the thickness of impinging-jet-plate can significantly increase its own heat transfer coefficient, which both all increase the cooling air flow loss.
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Tang, Tsz Loong, Hamidon Salleh, Muhammad Imran Sadiq, Mohd Anas Mohd Sabri, Meor Iqram Meor Ahmad, and Wan Aizon W. Ghopa. "Experimental and Numerical Investigation of Flow Structure and Heat Transfer Behavior of Multiple Jet Impingement Using MgO-Water Nanofluids." Materials 16, no. 11 (May 25, 2023): 3942. http://dx.doi.org/10.3390/ma16113942.

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Nanofluids have attracted significant attention from researchers due to their ability to significantly enhance heat transfer, especially in jet impingement flows, which can improve their cooling performance. However, there is a lack of research on the use of nanofluids in multiple jet impingements, both in terms of experimental and numerical studies. Therefore, further investigation is necessary to fully understand the potential benefits and limitations of using nanofluids in this type of cooling system. Thus, an experimental and numerical investigation was performed to study the flow structure and heat transfer behavior of multiple jet impingement using MgO-water nanofluids with a 3 × 3 inline jet array at a nozzle-to-plate distance of 3 mm. The jet spacing was set to 3, 4.5, and 6 mm; the Reynolds number varies from 1000 to 10,000; and the particle volume fraction ranges from 0% to 0.15%. A 3D numerical analysis using ANSYS Fluent with SST k-ω turbulent model was presented. The single-phase model is adopted to predict the thermal physical nanofluid. The flow field and temperature distribution were investigated. Experimental results show that a nanofluid can provide a heat transfer enhancement at a small jet-to-jet spacing using a high particle volume fraction under a low Reynolds number; otherwise, an adverse effect on heat transfer may occur. The numerical results show that the single-phase model can predict the heat transfer trend of multiple jet impingement using nanofluids correctly but with significant deviation from experimental results because it cannot capture the effect of nanoparticles.
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Cooper, L. Y. "Heat Transfer in Compartment Fires Near Regions of Ceiling-Jet Impingement on a Wall." Journal of Heat Transfer 111, no. 2 (May 1, 1989): 455–60. http://dx.doi.org/10.1115/1.3250698.

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The problem of heat transfer to walls from fire-plume-driven ceiling jets during compartment fires is introduced. Estimates are obtained for the mass, momentum, and enthalpy flux of the ceiling jet immediately upstream of the ceiling–wall junction. An analogy is drawn between the flow dynamics and heat transfer at ceiling-jet/wall impingement and at the line impingement of a wall and a two-dimensional, plane, free jet. Using the analogy, results from the literature on plane, free-jet flows and corresponding wall-stagnation heat transfer rates are recast into a ceiling-jet/wall-impingement-problem formulation. This leads to a readily usable estimate for the heat transfer from the ceiling jet as it turns downward and begins its initial descent as a negatively buoyant flow along the compartment walls. Available data from a reduced-scale experiment provide some limited verification of the heat transfer estimate. Depending on the proximity of a wall to the point of plume–ceiling impingement, the result indicates that for typical full-scale compartment fires with energy release rates in the range 200–2000 kW and fire-to-ceiling distances of 2–3 m, the rate of heat transfer to walls can be enhanced by a factor of 1.1–2.3 over the heat transfer to ceilings immediately upstream of ceiling-jet impingement.
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Zhou, Li Ming, Lei Zhu, Jing Quan Zhao, and Meng Zheng. "Numerical Simulation Study of Impinging Jet Impact Fin Surface on Heat Transfer Characteristics." Advanced Materials Research 663 (February 2013): 586–91. http://dx.doi.org/10.4028/www.scientific.net/amr.663.586.

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Three-dimensional numerical simulation was implemented to analyze the heat transfer characteristics for jet impingement impact fin surface. 60 calculation cases were simulated to investigate the effects of different fin surfaces on heat transfer characteristics, and 12 jet array impingement cases were calculated for comparison. The results shown that the fin shape, the height and the fin arrangement were the critical factors to affect the jet impingement and the best combination were existed in a certain range. The thermal resistance of cylinder fin arranged in order was34.7 percent higher than that of cylinder fin arranged staggered. The thermal resistance of square fin arranged in order was38.9 percent higher than that of square fin arranged staggered .The heat transfer coefficients of impinging jet impact fin surface were better than that of jet array impingement. The fitting correlations on heat transfer of impinging jet impact fin surface were given.
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Travnicek, Z., F. Marsik, and T. Hyhlik. "SYNTHETIC JET IMPINGEMENT HEAT/MASS TRANSFER." Journal of Flow Visualization and Image Processing 13, no. 1 (2006): 67–76. http://dx.doi.org/10.1615/jflowvisimageproc.v13.i1.50.

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Dissertations / Theses on the topic "Jet impingement heat transfer"

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Whitney, Christopher Francis. "Heat transfer characteristics of slot jet impingement." Thesis, Nottingham Trent University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320599.

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Butterfield, David Jacob. "Jet Impingement Heat Transfer from Superheated, Superhydrophobic Surfaces." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/9167.

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Liquid jet impingement is a technique ubiquitously used to rapidly remove large amounts of heat from a surface. Several different regions of heat transfer spanning from forced convection to nucleate, transition, and film boiling can occur very near to one other both temporally and spatially in quenching or high wall heat flux scenarios. Heat transfer involving jet impingement has previously shown dependency both on jet characteristics such as flow rate and temperature as well as surface material properties. Water droplets are known to bead up upon contact with superhydrophobic (SH) surfaces. This is due to reduced surface attraction caused by micro- or nanostructures that, combined with a natively hydrophobic surface chemistry, reduce liquid-solid contact area and attraction, promoting droplet mobility. This remarkable capability possessed by SH surfaces has been studied in depth due to its potential for self-cleaning and shear reduction, but previous research regarding heat transfer on such surfaces shows that it has varying effects on thermal transport. This thesis investigates the effect that quenching initially hot SH surfaces by water jet impingement has on heat transfer, particularly regarding phase change. Two comparative studies are presented. The first examines differences in transient heat transfer from hydrophilic, hydrophobic, and SH surfaces over a range of initial surface temperatures and with jets of varying Reynolds number (ReD), modified by adjusting flow rate. Comparisons of instantaneous local heat flux from the surfaces are made by performing an energy balance over differential control volumes across the surfaces. General trends show increased heat flux, jet spreading velocity and maximum jet spread radius when ReD is increased. An increase in inital surface temperature resulted in increased heat flux across all surfaces, but slowed jet spreading. The local heat flux, average heat rate, and total thermal energy transfer from the surface all confirmed that SH surfaces allow significantly less heat to transfer to the jet compared to hydrophilic surfaces, due to the enhanced Leidenfrost condition and reduced liquid-solid contact on SH surfaces which augments thermal resistance. The second study compares jet impingement heat transfer from SH surfaces of varying microstructures. Similar thermal effects due to modified jet ReD and initial surface temperature were observed. Modifying geometric pattern from microposts to microholes, altering cavity fraction, and changing feature pitch and width had little impact on heat transfer. However, reducing feature height on the post surfaces facilitated water penetration within the microstructure, slightly enhancing thermal transport.
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Spring, Sebastian [Verfasser]. "Numerical Prediction of Jet Impingement Heat Transfer / Sebastian Spring." München : Verlag Dr. Hut, 2011. http://d-nb.info/1011441330/34.

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Chan, Phillip. "Jet impingement boiling heat transfer at low coiling temperatures." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/401.

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The production of advanced high strength steels (AHSS) for use in the automotive and construction industries requires complex control of runout table (ROT) cooling. Advanced high strength steels require coiling at temperatures below 500 °C in order to produce a complex multi-phase microstructure. The research described here will investigate the boiling conditions that occur for moving plate experiments when steel is cooled towards low coiling temperatures. Experiments were performed on a pilot-scale ROT located at the University of British Columbia using industrially supplied steel plates. Tests were performed for four different speeds (0.3, 0.6, 1.0 and 1.3 m/s) and three different initial plate temperatures(350, 500 and 600 °C). Each plate was instrumented with thermocouples in order to record the thermal history of the plate. The results show that cooling is more effective at slower speeds within the stagnation zone for surface temperatures over 200 °C. Outside the stagnation zone regardless of speed cooling is primarily governed by air convection and radiation with minor effects from latent heat caused by splashing water. The maximum peak heat flux value increases with decreasing speed and occurs at a surface temperature of approximately 200 °C, regardless of speed. Below a surface temperature of 200 °C, speed has a negligible effect on peak heat flux. The maximum integrated heat flux seems to vary with speed according to a second order polynomial.
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Kanokjaruvijit, Koonlaya. "Heat transfer investigation of jet impingement coupled with dimples." Thesis, Imperial College London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415327.

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Ball, Stephen. "Near wall flow characteristics in jet impingement heat transfer." Thesis, Nottingham Trent University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388866.

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Schroder, Andrew Urban. "Experimental and Numerical Study of Impingement Jet Heat Transfer." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1305897623.

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Alshatti, Rashid Ali. "Heat Transfer Analysis of Slot Jet Impingement onto Roughened Surfaces." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5898.

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The effect of surface roughness on jet impingement heat transfer was investigated in this research. A numerical analysis was conducted for free surface slot jet impinging normally onto a heated plate. Six different geometries and three different plate materials were investigated. The cooling fluid used for the analysis was water, and the flow was laminar with a range of Reynolds number (Re) from 500 to 1000. Temperature distribution, local and average heat transfer coefficient, and local and average Nusselt number were presented for each case. The steady state heat transfer results show that the increase in Reynolds number (Re) increases the local heat transfer coefficient and the local Nusselt number. Impinging the jet nozzle directly onto a step has a better heat transfer enhancement than impinging the jet nozzle in between steps. Materials with low thermal conductivity exhibit large variation in temperature along the solid-fluid interface. The variations of the interface temperature become smaller between all cases when applying the isothermal boundary condition. The transient heat transfer results show that the temperature of the interface increases with time until steady state condition is met. Materials with high thermal diffusivity reach the steady state condition with less time. The increase in surface roughness increases the time required to reach the steady state condition. The highest rates of heat transfer were found at locations where no fluid recirculation occurs. It takes less time to reach steady state condition when applying the isothermal boundary condition at the bottom surface of the plate.
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Lombara, James S. (James Stewart). "An experimental investigation of liquid jet impingement heat transfer theories." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/14286.

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Liewkongsataporn, Wichit. "A numerical study of pulse-combustor jet impingement heat transfer." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22651.

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Thesis (Ph. D.)--Mechanical Engineering, Georgia Institute of Technology, 2008.
Committee Co-Chair: Ahrens, Fred; Committee Co-Chair: Patterson, Tim; Committee Member: Aidun, Cyrus; Committee Member: Empie, Jeff; Committee Member: Frederick, Jim.
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Books on the topic "Jet impingement heat transfer"

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Cooper, Leonard Y. Ceiling jet properties and wall heat transfer in compartment fires near regions of ceiling jet-wall impingement. Gaithersburg, Md: U.S. Dept. of Commerce, National Bureau of Standards, National Engineering Laboratory, Center for Fire Research, 1986.

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Impingement jet cooling in gas turbines. Boston, MA: WIT Press, 2014.

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Nunn, Robert H. Jet vane heat transfer modeling. Monterey, California: Naval Postgraduate School, 1986.

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Hemeson, Anthony Onyekwere. Influence of burner design on impingement heat transfer from flames. Portsmouth: Portsmouth Polytechnic, Dept. of Mechanical Engineering, 1986.

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Hatzenbuehler, Mark A. Modeling of jet vane heat-transfer characteristics and simulation of thermal response. Monterey, California: Naval Postgraduate School, 1988.

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D.C.) International Heat Transfer Conference (14th 2010 Washington. Enhancement of heat transfer with pool and spray impingement boiling on microporous and nanowire surface coatings. Golden, CO: National Renewable Energy Laboratory, 2010.

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S, Samuelsen G., Holdeman J. D, and United States. National Aeronautics and Space Administration., eds. Jet mixing in a reacting cylindrical crossflow. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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S, Samuelsen G., Holdeman J. D, and United States. National Aeronautics and Space Administration., eds. Jet mixing in a reacting cylindrical crossflow. [Washington, DC]: National Aeronautics and Space Administration, 1995.

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C, Su C., and United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch., eds. Heat transfer characteristics within an array of impinging jets: Effects of crossflow temperature relative to jet temperature. [Washington, DC]: National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1986.

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P, Proctor Margaret, and United States. National Aeronautics and Space Administration., eds. Transient technique for measuring heat transfer coefficients on stator airfoils in a jet engine environment. [Washington, DC: National Aeronautics and Space Administration, 1985.

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Book chapters on the topic "Jet impingement heat transfer"

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Wassenberg, J., P. Stephan, and T. Gambaryan-Roisman. "Heat Transfer During Pulsating Liquid Jet Impingement onto a Vertical Wall." In Advances in Heat Transfer and Thermal Engineering, 271–75. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4765-6_47.

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Ansari, Abdul Rahman, and Vipul M. Patel. "Performance Evaluation of Porous Layer in Jet Impingement Heat Transfer." In Lecture Notes in Mechanical Engineering, 271–83. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3379-0_24.

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Pal, Anish, Prahar Sarkar, Riddhideep Biswas, Sourav Sarkar, Pranibesh Mandal, Achintya Mukhopadhyay, and Swarnendu Sen. "Determination of Heat Transfer Coefficients for a Jet Impingement Cooling Scenario Using Inverse Heat Transfer." In Lecture Notes in Mechanical Engineering, 345–59. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6945-4_25.

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Banerjee, Gourab, Achintya Mukhopadhyay, Swarnendu Sen, Pranibesh Mandal, and Sourav Sarkar. "Numerical Analysis of Heat Transfer Characteristics Under Single-Jet Air Impingement." In Advances in Thermal Engineering, Manufacturing, and Production Management, 1–11. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2347-9_1.

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Farhad Ismail, Md, and Suvash C. Saha. "Enhancement of Confined Air Jet Impingement Heat Transfer Using Perforated Pin-Fin Heat Sinks." In Application of Thermo-fluid Processes in Energy Systems, 231–43. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-0697-5_10.

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Kadam, Anil R., Vijaykumar Hindasageri, and G. N. Kumar. "Estimation of Heat Transfer Coefficient and Reference Temperature in Jet Impingement Using Solution to Inverse Heat Conduction Problem." In Numerical Heat Transfer and Fluid Flow, 31–37. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1903-7_5.

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Deshmukh, Sonali Anant, Praveen Barmavatu, Mihir Kumar Das, Bukke Kiran Naik, and Radhamanohar Aepuru. "Heat Transfer Analysis in Liquid Jet Impingement for Graphene/Water Nano Fluid." In Lecture Notes in Mechanical Engineering, 1079–90. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6945-4_82.

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Wright, Edward, Abdallah Ahmed, Yuying Yan, John Maltson, and Lynda Arisso Lopez. "Experimental and Numerical Heat Transfer Investigation of Impingement Jet Nozzle Position in Concave Double-Wall Cooling Structures." In Advances in Heat Transfer and Thermal Engineering, 537–41. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4765-6_93.

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Parida, Ritesh Kumar, Anil R. Kadam, Vijaykumar Hindasageri, and M. Vasudeva. "Application of Green’s Function to Establish a Technique in Predicting Jet Impingement Convective Heat Transfer Rate from Transient Temperature Measurements." In Numerical Heat Transfer and Fluid Flow, 385–91. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1903-7_44.

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Pani, Bikram Kumar, and Dushyant Singh. "Computational Study of Mist Jet Impingement Heat Transfer on a Flat Plate with Slotted Nozzle." In Recent Advances in Mechanical Infrastructure, 133–41. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9971-9_14.

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Conference papers on the topic "Jet impingement heat transfer"

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Page, R. H. "Jet Impingement: Transport Phenomena." In Heat and Mass Transfer Australasia. Connecticut: Begellhouse, 2023. http://dx.doi.org/10.1615/978-1-56700-099-3.630.

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Kito, M., T. Matsumoto, T. Shakouchi, K. Tsujimoto, and T. Ando. "Heat transfer characteristics for inclined twin-jet impingement." In HEAT TRANSFER 2012. Southampton, UK: WIT Press, 2012. http://dx.doi.org/10.2495/ht120151.

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Nasif, G., R. M. Barron, R. Balachandar, and O. Iqbal. "Simulation of Jet Impingement Heat Transfer." In ASME 2013 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icef2013-19050.

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A numerical investigation to determine flow and thermal characteristics of an unsubmerged axisymmetric oil jet impinging on a confined flat surface with uniform heat flux has been undertaken. Large impingement length to nozzle diameter ratios were chosen in the simulations. The volume of fluid (VOF) method utilizing a High Resolution Interface Capturing scheme (HRIC) was used to perform the two-phase (air-oil) simulations. The governing 3D Navier-Stokes equations and energy equation were numerically solved using a finite volume discretization on an unstructured mesh. A new methodology was developed to define the radial extent of the stagnation region and understand the variation of the heat transfer coefficient in this region. The normalized local Nusselt number profile was found to be slightly dependent on Reynolds number for a given nozzle size. Correlations to predict the dimensionless velocity gradient and the Nusselt number in the stagnation region were established.
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Curbelo, Andres, Alex Hanhold, Cesar Lopez, Jayanta S. Kapat, Philippe T. Lott, and Uwe W. Ruedel. "Annular Heat Transfer Enhancement Using Jet Impingement." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-76898.

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Heat transfer in annuli has been widely investigated over the years. Annular channels are found in multiple industry applications, ranging from electronic equipment to nuclear reactor cooling. In order to enhance heat transfer, internal passages are augmented with roughness elements such as dimples, pimples, ribs, fins, and other features. However, the use of impingement cooling mechanism has not been utilized for such annular channels. An experimental study of impingement cooling within an annulus with the outer surface of the annulus being heated uniformly is conducted. Multiple flows as a function of Jet Reynolds number in the range of 16,000 to 46,000 are fundamentally examined. An impingement sleeve with an annular ratio of 0.92 was experimentally tested and compared to RANS numerical simulation results. Temperature Sensitive Paint (TSP) was utilized to experimentally obtain the local Heat Transfer distribution along the annular wall and close channel cap, which is normalized by the baseline annulus heat transfer distribution. Heat transfer results for the annular surface is compared with available correlations. Pressure drop across the facility is characterized at the inlet and exit of the experimental set up.
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Fang, Yuan, and Eckehard Specht. "HEAT TRANSFER ANALYSIS DURING JET IMPINGEMENT ON METAL PLATES." In International Heat Transfer Conference 16. Connecticut: Begellhouse, 2018. http://dx.doi.org/10.1615/ihtc16.cod.022136.

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Di Marco, Paolo, Walter Grassi, and A. Magrini. "UNSUBMERGED JET IMPINGEMENT HEAT TRANSFER AT LOW LIQUID SPEED." In International Heat Transfer Conference 10. Connecticut: Begellhouse, 1994. http://dx.doi.org/10.1615/ihtc10.1070.

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Habetz, Darren K., R. H. Page, and Jamal Seyed-Yagoobi. "IMPINGEMENT HEAT TRANSFER FROM A RADIAL JET REATTACHMENT FLAME." In International Heat Transfer Conference 10. Connecticut: Begellhouse, 1994. http://dx.doi.org/10.1615/ihtc10.2270.

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Jia, Rongguang, Masoud Rokni, and Bengt Sunden. "Impingement Cooling in Ribbed Ducts Due to Jet Arrays." In International Heat Transfer Conference 12. Connecticut: Begellhouse, 2002. http://dx.doi.org/10.1615/ihtc12.1070.

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Zu, Y. Q., Y. Y. Yan, and J. D. Maltson. "CFD Prediction for Multi-Jet Impingement Heat Transfer." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59488.

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In this paper, the flow and heat transfer characteristics of two lines of staggered or inline round jets impinging on a flat plate are numerically analyzed using the CFD commercial code FLUENT. Firstly, the relative performance of seven versions of turbulence models, including the standard k-ε model, the renormalization group k-ε model, the realizable k-ε model, the standard k-ω model, the Shear-Stress Transport k-ω model, the Reynolds stress model and the Large Eddy Simulation model, for numerically predicting single jet impingement heat transfer is investigated by comparing the numerical results with available benchmark experimental data. As a result, the Shear-Stress Transport k-ω model is recommended as the best compromise between the computational cost and accuracy. Using the Shear-Stress Transport k-ω model, the impingement flow and heat transfer under multi-jets with different jet distributions and attack angles are simulated and studied. The effect of hole distribution and angle of attack, etc. on the heat transfer coefficient of the target plate are examined.
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Lamont, Justin A., and Srinath V. Ekkad. "Effects of Rotation on Jet Impingement Channel Heat Transfer." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45744.

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The effects of the Coriolis force and centrifugal buoyancy is investigated in rotating internal serpentine coolant channels in turbine blades. For complex flow in rotating channels, detailed measurements of the heat transfer over the channel surface will greatly enhance the blade designer’s ability to predict hot spots so coolant air may be distributed more effectively. The present study uses a novel transient liquid crystal technique to measure heat transfer in a rotating, radially outward channel with impingement jets. This is the beginning of a comprehensive study on rotational effects on jet impingement. A simple case with a single row of constant pitch impinging jets with crossflow effect is presented to demonstrate the novel liquid crystal technique and document the baseline effects for this type of geoemtry. The present study examines the differences in heat transfer distributions due to variations in jet Rotation number and jet orifice-to-target surface distance. Colder air below room temperature is passed through a room temperature test section to simulate the centrifugal buoyancy effect seen in a real engine environment. This ensures that buoyancy is acting in a similar direction as in actual turbine blades where walls are hotter than the coolant fluid. Three parameters were controlled in the testing: jet coolant-to-wall temperature ratio, average jet Reynolds number, and average jet Rotation number. Results show, like serpentine channels, the trailing side experiences an increase in heat transfer and the leading side experiences a decrease for all jet channel height to jet diameter ratios (H/dj). At a jet channel height to jet diameter ratio of 1, the cross-flow from upstream spent jets greatly affects impingement heat transfer behavior in the channel.
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Reports on the topic "Jet impingement heat transfer"

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Cooper, Leonard Y. Ceiling jet properties and wall heat transfer in compartment fires near regions of ceiling jet-wall impingement. Gaithersburg, MD: National Bureau of Standards, 1986. http://dx.doi.org/10.6028/nbs.ir.86-3307.

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Thiagarajan, S. J., W. Wang, R. Yang, S. Narumanchi, and C. King. Enhancement of Heat Transfer with Pool and Spray Impingement Boiling on Microporous and Nanowire Surface Coatings. Office of Scientific and Technical Information (OSTI), September 2010. http://dx.doi.org/10.2172/990105.

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Cooper, Leonard Y. Fire-plume-generated ceiling jet characteristics and convective heat transfer to ceiling and wall surfaces in a two-layer zone-type fire environment:. Gaithersburg, MD: National Institute of Standards and Technology, 1991. http://dx.doi.org/10.6028/nist.ir.4705.

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