Abstract
Abstract : Flow field solutions of projectile with wrap-around fins have been computed for velocities ranging from Ma 1.3 to Mach 3. The flow field solutions were computed with a time-marching, 3-D. zonal, full Navier-Stokes code. The roll moment coefficient was computed from the flow field solutions and compared to the roll moment coefficient obtained experimentally for a similar wrap-around fin projectile. The roll moment coefficient computations show favorable agreement with experimental measurements in predicting changes of the roll moment coefficient magnitude and sign as a function of-the Mach number. This demonstrates computational fluid dynamics' capability as a promising method for reliably predicting the roll moment coefficient of projectiles with wrap-around fins.
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