Computation of Turbulent Flow over Finned Projectiles

In the present paper we describe the calculation of viscous flow around two finned axisymmetric bodies at angle of attack. The flow past two mortar shells is determined numerically by solving the Reynolds-averaged Navier-Stokes equations. The solution method applies Roe's flux difference splitting for the inviscid fluxes, whereas the viscous fluxes are centrally differenced. Turbulence is taken into account using either the Baldwin-Lomax turbulence model or a k 6 model. The results of the simulations are promising and give valuable data for the ballistic trajectory calculations.