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Numerical Simulation of Unsteady CH/Air Jet Diffusion Flame
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 Title & Authors
Numerical Simulation of Unsteady CH/Air Jet Diffusion Flame
Lee, Chang-Eon; O, Chang-Bo;
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The dynamic structures of unsteady CH/Air jet diffusion flame with a flame-vortex interaction were numerically investigated. A timed-dependent, axisymmetric computational model and a low mach number approximation were employed in the present calculation. A two-step global reaction mechanism which considers 6 species, was used to calculate the reaction rates. The predicted results including the gravitational effect show that the large outer vortices and the small inner vortices can be well simulated without any additional disturbances near nozzle tip. It was found that the temperature and species concentrations have deviated values even for the same mixture fraction in the flame-vortex interaction region. It was also shown that the flame surface is not deformed by the inner vortex in upstream region, while in downstream region, the flame surface is compressed or stretched by the outer vortex roll-up. The present unsteady jet flame configuration accompanying a flame-vortex interaction is expected to give good implications for the unsteady structures of turbulent flames.
Unsteady Jet;Flame-Vortex Interaction;Reacting Flow;Predictor-Corrector Scheme;
 Cited by
확산지배 난류 연소현상에서 역해석을 이용한 CH4/O2의 초기 질량분율 추정에 관한 연구,이균호;백승욱;

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비정상 소화 과정에서의 화염 온도 및 OH 라디칼의 변화,이은도;이기호;오광철;신현동;

대한기계학회논문집B, 2004. vol.28. 12, pp.1557-1566 crossref(new window)
비정상 대향류 확산 화염의 소화 한계 확장에 대한 실험적 연구,이은도;이기호;오광철;이의주;신현동;

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Akselvoll, K. and Moin, P., 1996, 'Large-eddy Simulation of Turbulent Confined Coannular Jets,' Journal of Fluid Mechanics., Vol. 315, pp. 387-411 crossref(new window)

Vervisch, L. and Trouve, A., 1998, 'LES Modeling for Lifted Turbulent Jet Flames,' Center for Turbulence Research, Proceedings. of the Summer Program

Pope, S. B., 1999,'A Perspective on Turbulence Modeling,' Modeling complex Turbulent Flows, (M.D. Salas, Eds.), Kluwer Academic Publisher

Najm, H. N. and Wyckoff, P. S., 1997, 'Premixed Flame Response to Unsteady Strain Rate and Curvature,' Combustion and Flame, Vol. 110, pp. 92-112 crossref(new window)

Patnaik, G. and Kailasanath, K, 1998, 'A Computational Study of Local Quenching in Flame-Vortex Interactions with Radiative Lasses,' Proceeding of the Combustion Institute, Vol. 27, pp. 711-717

Katta, V. R. and Roquemore, W. M., 1995, 'On the Structure of a Stretched/Compressed Laminar Flamelet-Influence of Preferential Diffusion,' Combustion and Flame, Vol. 100, pp. 61-70 crossref(new window)

Katta, V. R., Hsu, K. Y. and Roquemore, W. M., 1998, 'Local Extinction in an Unsteady Methane-Air Jet Diffusion Flame,' Proceeding of the Combustion Institute, Vol. 27, pp. 1121-1129

McMurtry, P. A., Jou, W.-H., Riley, J. J. and Metcalfe, R. W., 1986, 'Direct Numerical Simulations of a Reacting Mixing Layer with Chemical Heat Release,' AIAA Journal, Vol. 24, No. 6, pp. 962-970

Kee, R. J., Rupley and F. M, Miller, J. A, 1989, 'Chemkin-II: A Fortran Chemkin Kinetics Package for the Analysis of Gas Phase Chemical Kinetics,' SAND89-8009B

Kee, R. J., Dixon-Lewis, G, Warnatz, J, Coltrin, M. E. and Miller, J. A., 1986, 'A Fortran Computer Code Package for the Evaluation of Gas-Phase Multicomponent Transport Properties,' SAND86-8246

Hirt, C. W. and Cook, J. L., 1972, 'Calculating Three-Dimensional Flows around Structures and over Rough Terrain,' Journal of Computational Physics, Vol. 10, pp. 324-340 crossref(new window)

James, S and Madnia, C. K., 1996, 'Direct Numerical Simulation of a Laminar Vortex Ring,' Physics of Fluid, Vol. 8, No. 9, pp. 2400-2414 crossref(new window)

Fujiwara, T., Taki, S. and Arashi, K., 'Numerical Analysis of a Reacting Flow in H2/O2 Rocket Combustor Part 1 : Analysis of Turbulent Shear Flow,' AIAA 24th Aerospace Science Meeting,AIAA-86-0528, (1986), pp.1

Dupont, V., Pourkashanian, M. and Williams, A., 1993, 'Modelling of Process Heaters Fired by Natural Gas,' Journal of the Institute of Energy, Vol. 66, pp. 20-28

Mitchell, R. E., Sarofim, A. F. and Clomburg, L. A., 1980, 'Experimental and Numerical Investigation of Confined Laminar Diffusion Flames,' Combustion and Flame, Vol. 37, pp. 227-244 crossref(new window)

Bray, K.N.C.;Peters, N., 1994, 'Laminar Flamelet in Turbulent Flames,' Turbulent Reacting Flows.(P.A. Libby, F. A.Williams, Eds.), Academic Press., p.69-72

Katta, V. R., Goss, L. P. and W. M. Roquemore, 1994, 'Numerical Investigations of Transitional H2/N2 Jet Diffusion Flames,' AIAA Journal, Vol. 22, No. 1, pp.84-94

Chen-L.-D., Seaba, J. P., Roquemore, W. M. and Goss, L. P., 1988, 'Buoyant Diffusion Flames,' Proceedings of the Combustion Institute, Vol. 22, pp. 677-684