Ignition Time Delay in Swirling Supersonic Flow Combustion

Authors: A. M. Tahsini

Abstract:

Supersonic hydrogen-air cylindrical mixing layer is numerically analyzed to investigate the effect of inlet swirl on ignition time delay in scramjets. Combustion is treated using detail chemical kinetics. One-equation turbulence model of Spalart and Allmaras is chosen to study the problem and advection upstream splitting method is used as computational scheme. The results show that swirling both fuel and oxidizer streams may drastically decrease the ignition distance in supersonic combustion, unlike using the swirl just in fuel stream which has no helpful effect.

Keywords: Ignition delay, Supersonic combustion, Swirl, Numerical simulation, Turbulence.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1328750

References:

[1] Ju, Y., and Niioka, T., "Ignition Analysis of Unpremixed Reactants with Chain Mechanism in a Supersonic Mixing Layer," AIAA Journal, Vol. 31, No. 5, 1993, pp. 863-868.
[2] Ju, Y., and Niioka, T., "Reduced Kinetic Mechanism of Ignition for Nonpremixed Hydrogen/Air in a Supersonic Mixing Layer," Combustion and Flame, Vol. 99, 1994, pp. 240-246.
[3] Ju, Y., and Niioka, T., "Ignition Simulation of Methane/Hydrogen Mixtures in a Supersonic Mixing Layer," Combustion and Flame, Vol. 102, 1995, pp. 462-470.
[4] Da Silva, L. F. F., Deshaies, B., and Champion, M., "Some Specific Aspects of Combustion in Supersonic H2-Air Laminar Mixing Layers," Combustion Science and Technology, Vol. 89, 1993, pp. 317-333.
[5] Im, H. G., Chao, B. H., Bechtold, J. K., and Law, C. K., "Analysis of Thermal Ignition in the Supersonic Mixing Layer," AIAA Journal, Vol. 32, No. 2, 1994, pp. 341-349.
[6] Im, H. G., Helenbrook, B. T., Lee, S. R., and Law, C. K., "Ignition in the Supersonic Hydrogen/Air Mixing Layer with Reduced Reaction Mechanisms," Journal of Fluid Mechanics, Vol. 322, 1996, pp. 275-296.
[7] Nishioka, M., and Law, C. K., "A Numerical Study of Ignition in the Supersonic Hydrogen/Air Laminar Mixing Layer," Combustion and Flame, Vol. 108, 1997, pp. 199-219.
[8] Fang, X., Liu, F., and Sirignano, W. A., "Ignition and Flame Studies for an Accelerating Transonic Mixing Layer," Journal of Propulsion and Power, Vol. 17, No. 5, 2001, pp. 1058-1066.
[9] Tien, J. H., and Stalker, R. J., "Release of Chemical Energy by Combustion in a Supersonic Mixing Layer of Hydrogen and Air," Combustion and Flame, Vol. 130, 2002, pp. 329-348.
[10] Chakraborty, D., Paul, P. J., and Mukunda, H. S., "Evaluation of Combustion Models for High Speed H2/Air Confined Mixing Layer Using DNS Data," Combustion and Flame, Vol. 121, 2000, pp. 195-209.
[11] Zambon, A. C., Sriram, A. T., and Chelliah, H. K., "Development and Implementation of Explicit Reduced Reaction Models in Supersonic Reacting Shear Flow Simulations," 45th AIAA Aerospace Sciences Meeting and Exhibit, 8-11 January 2007, Reno, Nevada, AIAA-2007- 772.
[12] Zabaikin, V. A., Perkov, E. V., and Tretyakov, P. K., "Effect of an H202 Additive on Hydrogen Ignition and Combustion in a Supersonic Air Flow," Combustion, Explosion and Shock Waves, Vol. 33, No. 3, 1997, pp. 301-305.
[13] Tahsini, A. M., "Turbulence and Additive Effects on Ignition Delay in Supersonic Combustion," Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2012 (in press), doi: 10.1177/0954410011428981.
[14] Annand, M. S., Hsu, A. T., and Pope, S. B., " Calculations of Swirl Combustors Using Joint Velocity Scalar Probability Density Function Method," AIAA Journal, Vol. 35, No. 7, 1997, pp. 1143-1150.
[15] Vanoverberghe, K. P., and Vandelbulck, E. V., "Confined Annular Swirling Jet Combustion," Combustion Science and Technology, Vol. 175, 2003, pp. 545-578.
[16] Nemoda, S., Bakic, V., Oka, S., Zivkovic, G., and Crnomarkovic, N., " Experimental and numerical investigation of gaseous fuel combustion in swirl chamber," International Journal of Heat and Mass Transfer, Vol. 48, 2005, pp. 4623-4632.
[17] Kuo, K. K., Principles of Combustion, Chapter 3, 2nd edition, Wiley and Sons, 2005.
[18] Spalart, P. R., and Allmaras, S. R., "A One Equation Turbulence Model for Aerodynamic Flows," 30th Aerospace Sciences Meeting and Exhibit, 6-9 January 1992, NV, AIAA-92-439.
[19] Stahl, G., and Warnatz, J., "Numerical Investigation of Time-Dependent Properties and Extinction of Strained Methane- and Propane-Air Flamelets," Combustion and Flame, Vol. 85, 1991, pp. 285-299.
[20] Tahsini, A. M. and Mazaheri, K., "Swirl Effects on Spinning Solid Propellant Rocket Performance," 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, July 2006, Sacramento, California, AIAA-2006-4781.
[21] Hirsch, C., Numerical Computation of Internal and External Flows, Chapter 4, Wiley and Sons, 1988.
[22] Liou, M. S., "A Sequel to AUSM: AUSM+," Journal of Computational Physics, Vol. 129, 1996, pp. 364-382.
[23] Tahsini, A. M., and Farshchi, M., "Igniter Jet Dynamics in Solid Fuel Ramjets," Acta Astronautica, Vol. 64, 2009, pp. 166-175.
[24] Tahsini, A. M., and Farshchi, M., "Numerical Study of Solid Fuel Evaporation and Auto-Ignition in a Dump Combustor," Acta Astronautica, Vol. 67, 2010, pp. 774-783.
[25] Tahsini, A. M., "Piloted Ignition of Solid Fuels in Back-Step Turbulent Flows," Aerospace Science and Technology, Vol. 18, N. 1, PP. 8-14, 2012.