Abstract
The results of numerical and experimental studies of a new configuration of 3D hypersonic inlet with the minimum throat area, which was called a convergent inlet, are presented in this paper. It is shown that the use of this inlet configuration allows one to reduce the drag and thermal protection of surfaces of a hypersonic engine within the entire range of flight velocities. The calculations were performed within the framework of inviscid gas model by the method of finite volumes. The flow and inlet characteristics, taking account of viscosity, were also calculated using the boundary layer equations. The experimental studies were performed within the Mach number range from 2 to 10.7 and Reynolds number based on the model inlet height of Re=1–5×106. The results included the flow parameters on the external compression surface and in the inlet duct, the Mach number in the throat, the air flow rate, the total pressure recovery coefficient, the inlet drag, and the boundary layer characteristics on compression surfaces were determined, including the skin friction coefficients. These results are also compared with the data for traditional 2D inlets.
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References
Becker, J V. New Approaches to Hypersonic Aircraft. JCAS Paper, 1970, (16)
Weinder, S P. Propulsion Air Frame Integration Considerations for High Altitude Hypersonic Vehicles. AIAA Paper 1980 - 0111, 1980
Goldfeld, M A. Experimental Study of 3-D Inlets for High Supersonic Flight Vehicles. The ICMAR ITAM, 5–94, 1994
Molder, S, Szpiro, E J. The Busemann Inlet for Hypersonic Speeds. J. Spacecraft Rockets, 1303-1, 1966
Gutov, B I, Zatoloka, V V. Convergent Inlet Diffusers with the Initial Shock and Additional External Compression. Aerophis. Issledovania, ITAM SD USSR AS Novosibirsk, 1973, (2)
Trexel, C A. Inlet Performance of the Integrated Langley Scramjet Module (Mach 2.3 to 7.6). AIAA Paper, 75–1212, 1975
Billig, F S, Kothari, A P. Streamline Tracing Technique for Designing Hypersonic Vehicle. In: Proc. of the 13th International Symposium on Air Breathing Engines. Chatanooga, Tennessee, USA, 1997, 2
Gutov, B I, Zatoloka, V V. Design and Experimental Investigations of the Convergent Inlet Configuration with 3D Flow Combinations. Preprint ITAM SD USSR AS, 1983, 30–83
Schepanovsky, A V, Gutov, B I. Gasdynamical Design of Supersonic Inlets. Novosibirsk: Nauka, 1993
Goldfeld, M A, Lisenkov, I G. Investigation of Compressible Turbulent Boundary Layer at Large Adverse Pressure Gradient. Separated Flows and Jets IUTAM Symposium, Novosibirsk, USSR, Springer-Verlag, 1990
Shashkin, A P, Volkov, V F. The One Numerical Scheme for Inviscous Flows. Zadachi Obtecania Tel Prostranstvennoi Configuratsii, Novosibirsk, 1978
Gilmanov, A N, Culachkova, N A. Numerical Investigations of the 2-D Flows with Shocks Using TVD-Scheme on the Adaptive Grid. Matematicheskoe Modelirovanie, Novosibirsk, 1995, 7(3)
Goldfeld, M A, Kliaus, A H. Influence of the Distributed Pressure Gradient on the Boundary Layer Development Behind Expansion Fan. Thermophysics and Aeromechanics, Novosibirsk, 1995, 2(1)
Laderman, A J. Adverse Pressure Gradient Effects on Supersonic Boundary Layer Turbulence. AIAA Journal, 1980, 18(10)
Kutateladze, S S, Leontiev, A I. Heat and Mass Transfer in the Turbulent Boundary Layer. Inergoatomizdat, Moscow, 1985
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Goldfeld, M.A., Nestoulia, R.V. Numerical and experimental studies of 3D hypersonic inlet. J. of Therm. Sci. 11, 198–206 (2002). https://doi.org/10.1007/s11630-002-0055-8
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DOI: https://doi.org/10.1007/s11630-002-0055-8