Numerical Computations of Supersonic Flow Over a Square Cross-Section Missile

Report No. ARL-TR-3562
Authors: Sidra I. Silton and Jubaraj Sahu
Date/Pages: August 2005; 52 pages
Abstract: This report describes a computational study undertaken to determine the aerodynamics of a nonaxisymmetric missile with a square cross section. Numerical solutions have been obtained at supersonic speeds for various roll orientations and angles of attack using a two-equation Reynolds-averaged Navier-Stokes turbulence model. Numerical results show the qualitative features (vortices and cross-flow separation regions) of the flow field at various stream wise positions along the missile configurations. Aerodynamic coefficients have been obtained from the computed solutions and found to match well with the available experimental data for these configurations. These numerical results show the ability of computational fluid dynamics techniques to accurately predict the aerodynamics of nonaxisymmetric missiles with a square cross section.
Distribution: Approved for public release
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Last Update / Reviewed: August 1, 2005