Main Article Content
Abstract
Starting and unstarting characteristics of a hypersonic air intake is studied through inviscid and viscous simulations. Comparison of simulated center body Mach number obtained from Euler simulations for different free stream Mach numbers show a much crisper solution for the present computation as compared to other simulations reported in the literature. For Euler simulation, hysteresis effect of intake pressure recovery and mass capture ratio were observed. The hysteresis of pressure recovery clearly showed distinct point of starting / unstarting of the intake. The same hysteresis effect could not be observed for viscous simulation. Well resolved viscous simulations are required for estimation of hypersonic intake characteristics.
Article Details
References
- Seddon, J. and Goldsmith, E.L., "Intake Aerodynamics", AIAA Education Series, 1985.
- Kantrowitz A. and Donaldson, C., "Preliminary Investigation of Supersonic Diffusers", NACA WR L-713, 1945.
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- Das, S. and Prasad, J. K., "Starting Characteristics of a Rectangular Supersonic Airintake with Cowl Deflection", The Aeronautical Journal, Vol.114, No.3, March 2010, pp.177-189.
- Lind, C. A. and Lewis, M. J., "The Effect of Shock/Shock Interactions on the Design of Hypersonic Inlets", AlAA Paper No. 90-2217, 1990.
- Brenneis, A. and Wanie, K. M., "Navier-Stokes Results for Hypersonic Inlet Flows", AlAA Paper No.91-2472, 1991.
- Soumyajit Saha and Debasis Chakraborty., "Hypersonic Intake Starting Characteristics - A CFD Validation Study", Defence Science Journal, Vol. 62, No.3, May 2012, pp.147-152.
- Donde, P., Marathe, A. G. and Sudhakar, K., "Starting in Hypersonic Intakes", AIAA Paper No.2006- 4510.
- Barber, T. J., David, H. and Fastenberg, S., "CFD Modeling of Hypersonic Inlet Starting Problem", AIAA 2006-123, January 2006.
- Ansys Fluent User Guide Release 14.0 Ansys Inc. November 2011.
References
Seddon, J. and Goldsmith, E.L., "Intake Aerodynamics", AIAA Education Series, 1985.
Kantrowitz A. and Donaldson, C., "Preliminary Investigation of Supersonic Diffusers", NACA WR L-713, 1945.
Dirk, S., Andreas, H. and Ulrich, W., "Reduction of Shock Induced Boundary Layer Separation In Hypersonic Inlets Using Bleed", Aerospace Science and Technology, Vol.2, Issue 4, 1998, pp.231-239.
Molder. S., Timofeev, E.V. and Tahir, R. B., "Flow Starting in High Compression Hypersonic Air Inlets by Mass Spillage", AIAA Paper No.2004-4130, 2004.
Donde, P., Marathe, A. G. and Sudhakar, K., "Starting in Hypersonic Intakes", AIAA Paper No. 2006- 4510.
Lu, P. J. and Jain, L.T., "Numerical Investigation of Inlet Buzz Flow", AIAA Journal, Vol.14, No.1, 1998, pp.90-100.
Oh, J. Y., Fuhara Ma., Shih-Yang Hseih and Vigor Yang., "Interactions Between Shock and Acoustic Waves in a Supersonic Inlet Diffuser", Journal of Propulsion and Power, Vol. 21, No.3, 2005, pp.486 494.
Schneider, A. and Koschel, W.W., "Detailed Analysis of a Mixed Compression Hypersonic Intake", ISABE Paper No.99-7036, 1999.
Haberle, J. and Gulhan, A., "Experimental Investigation of a Two-Dimensional and Three Dimensional Scramjet Inlet at Mach 7", Journal of Propulsion and Power, Vol. 24, No.5, October 2008, pp.1023- 1034.
Haberle, J. and Gulhan, A., "Internal Flowfield Investigation of Hypersonic Inlet at Mach 6 with Bleed", Journal of Propulsion and Power, Vol.23, No.5 2007, pp.1007-1017.
Das, S. and Prasad, J. K., "Starting Characteristics of a Rectangular Supersonic Airintake with Cowl Deflection", The Aeronautical Journal, Vol.114, No.3, March 2010, pp.177-189.
Lind, C. A. and Lewis, M. J., "The Effect of Shock/Shock Interactions on the Design of Hypersonic Inlets", AlAA Paper No. 90-2217, 1990.
Brenneis, A. and Wanie, K. M., "Navier-Stokes Results for Hypersonic Inlet Flows", AlAA Paper No.91-2472, 1991.
Soumyajit Saha and Debasis Chakraborty., "Hypersonic Intake Starting Characteristics - A CFD Validation Study", Defence Science Journal, Vol. 62, No.3, May 2012, pp.147-152.
Donde, P., Marathe, A. G. and Sudhakar, K., "Starting in Hypersonic Intakes", AIAA Paper No.2006- 4510.
Barber, T. J., David, H. and Fastenberg, S., "CFD Modeling of Hypersonic Inlet Starting Problem", AIAA 2006-123, January 2006.
Ansys Fluent User Guide Release 14.0 Ansys Inc. November 2011.