HIGH-RESOLUTION UPWIND VISCOUS-FLOW SOLVER ON SOCBT CONFIGURATION WITH TURBULENCE MODELS

A computationally efficient method is presented for solving the three- dimensional governing equations of the viscous compressible flows abou t a secant-ogive-cylinder-boattail (SOCBT) configuration. The steady f ull Navier-Stokes equations in mass-averaged variables were integrated numerically using the explicit multi-stage high-resolution upwind flu x-difference split scheme with three different turbulence models (Bald win-Lomax algebraic model, Mitcheltree one-equation model and Launder- Sharma. k-epsilon two-equation model) to closure the system equations. Test cases for subsonic and supersonic flow over a SOCBT at angles of attack of 0 degrees, 10 degrees are calculated. Good agreement is obt ained between the present computed results and experimental measuremen t of surface pressure.