Abstract
Hypersonic viscous flows near simple-shape bodies (wedge, cone, disk, and plate) have been studied numerically under the conditions of wind-tunnel experiments. The Direct Simulation Monte-Carlo technique has been used to study the influence of similarity parameters (the Reynolds number, temperature factor, specific heat ratio, and viscosity-approximation parameter) on the flow structure near the bodies and on the aerodynamic coefficients in hypersonic streams of air, nitrogen, helium, and argon. The numerical results are in a good agreement with experimental data, which were obtained in a vacuum chamber at low and moderate Reynolds numbers from 0.1 to 200.
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