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Numerical Simulations of Hypersonic Real-Gas Flows Over Space Vehicles
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Abstract
Hypersonic flows over simple 3-D bodies and a space vehicle are simulated using a real-gas Navier- Stokes code under an equilibrium air assumption. This code is based on 3-D upwind flux splitting scheme with generalized Roe's Riemann solver. The real-gas effect is incorporated using the VEG (Variable Equivalent Gamma) method [1]*. The equivalent gamma and other thermodynamic properties are calculated using empirical curve fits [2].
Numerical simulations are conducted for flow fields around a spherical blunt body, a spherical-nose cylinder, and a cone-cylinder as simple configurations, and HOPE (H-orbiting plane: Japanese spaceplane) as a practical plane configuration. Flow conditons are Mach numbers of 7.72, 15.0 for the blunt bodies, 6.86 for the cone-cylinder, and 15.0 for the HOPE. Computed pressure and density distributions are presented. Results for simple configuration cases are compared with experimental data for the code validation.
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Citation
Nakao, M. and Fujii, K., "Numerical Simulations of Hypersonic Real-Gas Flows Over Space Vehicles," SAE Technical Paper 912045, 1991, https://doi.org/10.4271/912045.Also In
References
- Grossman, B. Walters, R. W. ‘An Analysis of Flux-Split Algorithms for Euler's Equations with Real Gases,’ AIAA-87-1117
- Srinivasan, S. Tannehill, J. C. Weilmuenster, K. J. ‘Simplified Curve Fits for the Thermodynamic Properties of Equilibrium Air,’ NASA RP-1187 1987
- Fujii, K. Obayashi, S. ‘High-Resolution Upwind Scheme for Vortical Flow Simulations,’ AIAA Journal of Aircraft 26 12 December 1989 337 356
- Roe, P. L. ‘Characteristic-Based Schemes for the Euler Equations,’ Fluid Mech. 1986 18 337 365
- Srinivasan, S. Tannehill, J. C. ‘Simplified Curve Fits for the Transport Properties of Equilibrium Air,’ NASA CR-178411 1987
- Peery, K. M. Imlay, S. T. Katsandres, J. T. ‘Real-Gas Blunt-Body Flow Simulations,’ AIAA-87-2179
- Miller, C. G. III ‘A Comparison of Measured and Predicted Sphere Shock Shapes in Hypersonic-Flows with Density Ratios from 4 to 19,’ NASA TN D-8076 1975
- Prabhu, R. K. Stewart, J. R. Thareja, R. R. ‘A Navier-Stokes Slover for High Speed Equilibrium Flows and Application to Blunt Bodies,’ AIAA-89-0668
- Prabhu, R. K. Erickson, W. D. ‘A Rapid Method for the Computation of Equilibrium Chemical Composition of Air of 15,000K,’ NASA TP-2797 1988
- Hughson, M. C. Cottrell, C. J. ‘Hypersonic Prediction Comparisons with Experimental Data for a Cone-Cylinder at Mach 6.86,’ AIAA-89-0524
- Cooper, R. D. Robinson, R. A. ‘An Investigation of the Aerodynamic Characteristics of a Series of Cone-Cylinder Configurations at a Mach Number of 6.86,’ NACA RM L51J09 1951