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Advanced Techniques in Aerodynamics Analysis of Re-Entry Capsules

Explore the intricacies of aerodynamics in re-entry capsules using cutting-edge methods like Navier-Stokes equations and finite volume method. Dive deep into continuum to hypersonic flows, with emphasis on arbitrary shapes and angles of attack. Unravel the complexities of slip flow and rarefied flow regimes. Discover experimental methods in wind tunnels and innovative facilities for aerodynamic experiments.

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Advanced Techniques in Aerodynamics Analysis 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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