Leeside Crossflow Modeling in Euler Space-Marching Computations
NAVAL SURFACE WEAPONS CENTER SILVER SPRING MD
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A simple method has been developed to model crossflow separation for inviscid Euler type computations by suppressing the crossflow velocity near the body surface. The method has been validated for a tangent-ogive-cylinder body of circular cross-section and shown to be useful at supersonic speeds at low to intermediate angles of incidence M 5, alpha 20 deg. At low March numbers M 3 the method offers a significant improvement in the inviscid leeside surface pressure distributions and also yields improved predictions of aerodynamic coefficients. In this report the algorithm for a tangent-ogive- cylinder body is described and comparisons of numerical and experimental data are presented.
- Fluid Mechanics