Littérature scientifique sur le sujet « Stretched Flames »
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Articles de revues sur le sujet "Stretched Flames"
JU, YIGUANG, HONGSHENG GUO, KAORU MARUTA et FENGSHAN LIU. « On the extinction limit and flammability limit of non-adiabatic stretched methane–air premixed flames ». Journal of Fluid Mechanics 342 (10 juillet 1997) : 315–34. http://dx.doi.org/10.1017/s0022112097005636.
Texte intégralClavin, Paul, et José C. Graña-Otero. « Curved and stretched flames : the two Markstein numbers ». Journal of Fluid Mechanics 686 (28 septembre 2011) : 187–217. http://dx.doi.org/10.1017/jfm.2011.318.
Texte intégralJu, Yiguang, Kaoru Maruta et Takashi Niioka. « Combustion Limits ». Applied Mechanics Reviews 54, no 3 (1 mai 2001) : 257–77. http://dx.doi.org/10.1115/1.3097297.
Texte intégralLaw, C. K. « Dynamics of stretched flames ». Symposium (International) on Combustion 22, no 1 (janvier 1989) : 1381–402. http://dx.doi.org/10.1016/s0082-0784(89)80149-3.
Texte intégralMikolaitis, David W. « Stretched spherical cap flames ». Combustion and Flame 63, no 1-2 (janvier 1986) : 95–111. http://dx.doi.org/10.1016/0010-2180(86)90114-8.
Texte intégralThiesset, F., F. Halter, C. Bariki, C. Lapeyre, C. Chauveau, I. Gökalp, L. Selle et T. Poinsot. « Isolating strain and curvature effects in premixed flame/vortex interactions ». Journal of Fluid Mechanics 831 (13 octobre 2017) : 618–54. http://dx.doi.org/10.1017/jfm.2017.641.
Texte intégralAvula, Murali, et Ishwar K. Puri. « Dioxin formation in stretched flames ». Chemosphere 24, no 12 (juin 1992) : 1785–98. http://dx.doi.org/10.1016/0045-6535(92)90233-h.
Texte intégralMokrin, Sergey, R. V. Fursenko et S. S. Minaev. « Thermal-Diffusive Stability of Counterflow Premixed Flames at Low Lewis Numbers ». Advanced Materials Research 1040 (septembre 2014) : 608–13. http://dx.doi.org/10.4028/www.scientific.net/amr.1040.608.
Texte intégralYousif, Alaeldeen Altag, et Shaharin Anwar Sulaiman. « Experimental Study on Laminar Flame Speeds and Markstein Length of Methane-Air Mixtures at Atmospheric Conditions ». Applied Mechanics and Materials 699 (novembre 2014) : 714–19. http://dx.doi.org/10.4028/www.scientific.net/amm.699.714.
Texte intégralJu, Yiguang, et Yuan Xue. « Extinction and flame bifurcations of stretched dimethyl ether premixed flames ». Proceedings of the Combustion Institute 30, no 1 (janvier 2005) : 295–301. http://dx.doi.org/10.1016/j.proci.2004.08.258.
Texte intégralThèses sur le sujet "Stretched Flames"
YAMAMOTO, Kazuhiro, et Satoru ISHIZUKA. « Temperatures of Positively and Negatively Stretched Flames ». Japan Society of Mechanical Engineers, 2003. http://hdl.handle.net/2237/9370.
Texte intégralLong, Scott R. « Experimental determination of strain rates in stretched laminar diffusion flames ». Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-08222009-040351/.
Texte intégralDetomaso, Nicola. « Simulation aux grandes échelles de la combustion à volume constant : modélisation numérique des flammes turbulentes en expansion dans les mélanges non homogènes ». Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSEP034.
Texte intégralClassical gas turbine thermodynamic cycle has undergone no major changes over the last decades and the most important efficiency improvements have been obtained reducing thermal losses and raising the overall pressure ratio and peak temperature. Despite the efforts in research and development aiming at enhancing especially combustion chambers performances, current technologies may fall short of complying the increasingly stringent environmental constraints. Consequently, a technological breakthrough is essential to shape the future of thermal engines. Pressure Gain Combustion (PGC) emerges as one of the most promising solutions, introducing new thermodynamic cycles where, unlike the Brayton cycle, pressure increases across the combustion process. This can lead to a lower entropy raise, benefiting the overall cycle efficiency.Several PGC concepts are currently studied by the combustion community, ranging from deflagration, such as constant volume combustion (CVC), to detonation, including Rotating Detonation Combustion (RDC) and Pulse Detonation Engine (PDE). Numerical simulation is used to assess the performance of these systems as well as better understand their behavior for improvements before performing experimental tests. Large Eddy Simulation (LES) has assumed an increasingly significant role in combustion science thanks to its high capability in capturing reacting flows. However, with the increasing complexity of combustion systems, advanced physical models are crucial to ensure predictive simulations.In this work, constant volume combustion technology is assessed and the main numerical challenges posed by these combustion systems are scrutinized. Ignition, high pressure combustion, dilution, flame-turbulence interaction, flame-stretch effects, heat fluxes are just part of the physics that CVC systems encompass and their interplay leads to complex physical phenomena that have to be modeled. The numerical models developed in this work are primarily scrutinized in simple test cases and then applied in complete 3D LES framework to compute the constant volume combustion chamber CV2, operated at Pprime laboratory (Poitiers, France).First, novel boundary conditions, based on NSCBC formalism, are derived from nozzle theory to mimic intake and exhaust valve effects. With this strategy no moving part is introduced in the LES and the flow properties are imposed both at the inlet and the outlet of these valves-controlled systems.Second, a two-step chemistry for propane/air mixtures is derived for multiple pressure, temperature and composition of fresh gases. The chemical kinetics is optimized for different concentration of dilutants, composed by burnt products such as carbon dioxide and water vapor. Like piston engines, constant volume chambers operate cyclically and each combustion event is affected by the residual burnt gases coming from previous cycles. For this reason, a numerical model to detail the local composition of diluted flammable mixtures is proposed to provide all the fresh gas information required by the kinetics and the combustion model. Based on a generalization of the classical Thickened Flame (TF) model, a new combustion model, the Stretched-Thickened Flame (S-TF) model, is developed to overcome the TF model limitations in predicting stretch effects on the laminar flame burning velocity. This is crucial to well capture transient events of propagating flames, which are fundamental in CVCs.Eventually, the ignition modeling is assessed and the Energy Deposition model is coupled with the S-TF model by tracking the kernel size in time.The models developed in this thesis are then applied to the CV2 chamber, highlighting their positive impact in capturing the unsteady physics involved in such systems
Nanduri, Jagannath Ramchandra. « A COMPUTATIONAL STUDY OF THE STRUCTURE, STABILITY, DYNAMICS, AND RESPONSE OF LOW STRETCH DIFFUSION FLAME ». Case Western Reserve University School of Graduate Studies / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=case1132237973.
Texte intégralAmato, Alberto. « Leading points concepts in turbulent premixed combustion modeling ». Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/52247.
Texte intégralHinton, Nathan Ian David. « Measuring laminar burning velocities using constant volume combustion vessel techniques ». Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:5b641b04-8040-4d49-a7e8-aae0b0ffc8b5.
Texte intégralMarshall, Andrew. « Turbulent flame propagation characteristics of high hydrogen content fuels ». Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53859.
Texte intégralTaylor, Simon Crispin. « Burning velocity and the influence of flame stretch ». Thesis, University of Leeds, 1991. http://etheses.whiterose.ac.uk/2099/.
Texte intégralli, zhiliang. « EXPERIMENTAL AND CFD INVESTIGATIONS OF LIFTED TRIBRACHIAL FLAMES ». Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3048.
Texte intégralPh.D.
Department of Mechanical, Materials and Aerospace Engineering
Engineering and Computer Science
Mechanical Engineering PhD
Roldo, Ismael. « Estudo experimental e teórico de chamas em escoamento de estagnação imersas em meios porosos inertes ». reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/127905.
Texte intégralThe interest in developing efficient combustion systems to reduce environmental pollution and increase the burning efficiency has called attention to the combustion in inert porous media. The heat recirculation, induced by the solid matrix, from the hot products to the incoming cold reactants, increases the flame temperature and improves its stability, allowing for the use of fuels with low heat content. A recent study shows theoretically that a flame stabilized by a stagnation plane immersed in a porous medium may, under certain conditions, to extend the flammability limits of a mixture of fuel and air. On the other hand, the stagnation plane imposes a certain strain rate on the flow field, which is relevant to various porous burner configurations. Therefore, the focus of this work is the study of combustion in a porous burner with a stagnation plane. An experiment is conducted with packing bed of spheres where a flame can be stabilized against a stagnation plane. The equivalence ratio and the strain rate are controlled by the flows of air and fuel and the distance between the injector and the stagnation plane. The flame position is approximately determined by the temperature field measured by thermocouples. In addition, it is performed a simplified numerical analysis of the problem in which one can see the effect of the strain rate on the stability of flames in porous burners. The results show that it is possible to stabilize flames within the porous medium with stagnation plane, however, it has not been possible to assign a temperature increase due to the increased strain rate.
Livres sur le sujet "Stretched Flames"
Pitz, R. W. Comparison of reaction zones in turbulent lifted diffusion flames to stretched laminar flamelets. Washington, D.C : American Institute of Aeronautics and Astronautics, 1992.
Trouver le texte intégralNational Aeronautics and Space Administration (NASA) Staff. Stretch-Induced Quenching in Flame-Vortex Interactions. Independently Published, 2019.
Trouver le texte intégralClasen, Mathias. Sizing Up the Beast. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190666507.003.0002.
Texte intégralFreud, Sophie. Living in the Shadow of the Freud Family. Praeger, 2007. http://dx.doi.org/10.5040/9798400680328.
Texte intégralChapitres de livres sur le sujet "Stretched Flames"
Isaac, K. M. « Characteristics of Stretched Hydrogen-Air Diffusion Flames at High Pressures ». Dans Transition, Turbulence and Combustion, 203–16. Dordrecht : Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1034-1_19.
Texte intégralMeyer, Michael Peter, et Rune Peter Lindstedt. « Evaluation of Hazard Correlations for Hydrogen-Rich Fuels Using Stretched Transient Flames ». Dans Green Energy and Technology, 197–222. Singapore : Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2648-7_9.
Texte intégralReames, Donald V. « A Turbulent History ». Dans Solar Energetic Particles, 19–48. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-66402-2_2.
Texte intégralScioli, Anthony. « The Psychology of Hope : A Diagnostic and Prescriptive Account ». Dans Historical and Multidisciplinary Perspectives on Hope, 137–63. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46489-9_8.
Texte intégral« Predicted Structure of Stretched and Unstretched Methane-Air Diffusion Flames ». Dans Dynamics of Flames and Reactive Systems, 305–19. New York : American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/5.9781600865701.0305.0319.
Texte intégral« Charikleia, Condemned as a Poisoner, Rescued by Divine Intervention ». Dans Women’s Religions in the Greco-Roman World, sous la direction de Ross Shepard Kraemer, 374. Oxford University PressNew York, NY, 2004. http://dx.doi.org/10.1093/oso/9780195170658.003.0119.
Texte intégral« Simulation of Stretched Premixed CH4-Air and C3H8-Air Flames with Detailed Chemistry ». Dans Dynamics of Reactive Systems Part I : Flames ; Part II : Heterogeneous Combustion and Applications, 195–214. Washington DC : American Institute of Aeronautics and Astronautics, 1988. http://dx.doi.org/10.2514/5.9781600865879.0195.0214.
Texte intégralMichalski, Krzysztof. « Time Flows, the Child Plays ». Dans The Flame of Eternity, traduit par Benjamin Paloff. Princeton University Press, 2011. http://dx.doi.org/10.23943/princeton/9780691143460.003.0002.
Texte intégral« Stretch Effects in Planar Premixed Hydrogen-Air Flames ». Dans Dynamics of Flames and Reactive Systems, 61–74. New York : American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/5.9781600865701.0061.0074.
Texte intégralHecht, Jeff. « Fibers of Glass ». Dans City of Light, 28–33. Oxford University PressNew York, NY, 1999. http://dx.doi.org/10.1093/oso/9780195108187.003.0003.
Texte intégralActes de conférences sur le sujet "Stretched Flames"
Buckmaster, J., et J. Buckmaster. « The effects of radiation on stretched flames ». Dans 35th Aerospace Sciences Meeting and Exhibit. Reston, Virigina : American Institute of Aeronautics and Astronautics, 1997. http://dx.doi.org/10.2514/6.1997-238.
Texte intégralGuo, Hongsheng, Stuart W. Neill et Gregory J. Smallwood. « A Numerical Investigation of NOx Formation in Counterflow CH4/H2/Air Diffusion Flames ». Dans ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14458.
Texte intégralAbou-Ellail, Mohsen, Ryo S. Amano, Samer Elhaw, Karam Beshay et Hatem Kayed. « A Skewed Two-Dimensional Probability Density Function for Methane-Air Turbulent Diffusion Flames ». Dans 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-23068.
Texte intégralRajagopalan, Hari Priya, Renee Cole, David Wu, Benjamin Emerson et Timothy Lieuwen. « Turbulent Burning Velocity of High Hydrogen Flames ». Dans ASME Turbo Expo 2024 : Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/gt2024-121349.
Texte intégralVenkateswaran, Prabhakar, Andrew D. Marshall, David R. Noble, Jerry M. Seitzman et Tim C. Lieuwen. « Turbulent Consumption Speed Scaling of H2/CO Blends ». Dans ASME 2011 Turbo Expo : Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45401.
Texte intégralFoley, C. W., I. Chterev, J. Seitzman et T. Lieuwen. « High Resolution PIV and CH-PLIF Measurements and Analysis of a Shear Layer Stabilized Flame ». Dans ASME Turbo Expo 2015 : Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-43387.
Texte intégralMedina Martinez, Urbano A., Harshavardhana A. Uranakara, Takuya Tomidokoro, Lorenzo Angelilli et Hong G. Im. « Understanding extinction of stretched premixed hydrogen-air flames using the tangential stretching rate ». Dans AIAA SCITECH 2024 Forum. Reston, Virginia : American Institute of Aeronautics and Astronautics, 2024. http://dx.doi.org/10.2514/6.2024-0400.
Texte intégralSalusbury, Sean D., Ehsan Abbasi-Atibeh et Jeffrey M. Bergthorson. « The Effect of Lewis Number on Instantaneous Flamelet Speed and Position Statistics in Counter-Flow Flames With Increasing Turbulence ». Dans ASME Turbo Expo 2017 : Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-64821.
Texte intégralDANCEY, C., et S. LONG. « Experimental investigation of the strain rate field in stretched laminar H2/air diffusion flames ». Dans 23rd Fluid Dynamics, Plasmadynamics, and Lasers Conference. Reston, Virigina : American Institute of Aeronautics and Astronautics, 1993. http://dx.doi.org/10.2514/6.1993-3068.
Texte intégralYoshida, A., Y. Momomoto, H. Naito et Y. Saso. « Effect of water mist on temperature and burning velocity of stretched propane-air premixed flames ». Dans MULTIPHASE FLOW 2013. Southampton, UK : WIT Press, 2013. http://dx.doi.org/10.2495/mpf130191.
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