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AERODYNAMICS OF RE-ENTRY CAPSULES

AERODYNAMICS OF RE-ENTRY CAPSULES. A.S. LYASKIN, V. G. SHAKHOV. Tsien’s chart. Reynolds number. Mach number. Knudsen number. continuum flow. slip flow transition phase. free-molecular (rarefied) flow. Free-molecular (rarefied) flow. Diffuse reflection. Mirror reflection. Enamel.

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AERODYNAMICS OF RE-ENTRY CAPSULES

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  1. AERODYNAMICS OF RE-ENTRY CAPSULES A.S. LYASKIN, V. G. SHAKHOV

  2. Tsien’s chart Reynolds number Mach number Knudsen number continuum flow • slip flow • transition phase free-molecular (rarefied) flow

  3. Free-molecular (rarefied) flow Diffuse reflection Mirror reflection Enamel Glass

  4. Continuum flow • subsonic flow • transonic flow • supersonic flow • hypersonic flow

  5. Methods for calculation of aerodynamic parameters • sub-, trans-, super- and hypersonic flows • arbitrary shapes, close to body of revolution • arbitrary angles of attack • local flow parameters Navier-Stokes equations Euler equations Finite volume method Large particle method

  6. Sphere (Photino), M=3, Re6·105, T0body=293K Surface temperature With heat transfer Flow temperature Without heat transfer

  7. YES2 AIR 3D CAD model 3D FV mesh (Star-CD, SSAU) 2D FV mesh (Fluent, Marco)

  8. Experimental methods • Wind-tunnels: • low-speed • subsonic • transonic • supersonic • hypersonic • Special facilities: • ... SSAU AUTOMATIC SYSTEM FOR AERODYNAMIC EXPERIMENTS • Low-speed wind-tunnel T-3 • 6-component strain balance • - angles change • digital video camera • Intranet and Internet

  9. Experimental methods

  10. Experimental methods www.aero.ssau.ru/labwork/index.html

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