Abstract
Hypersonic flow interactions for short protuberances installed on standard blunt nose conic con figurations were studied, aerodynamic effects were found analogous to lateral jet -interactions for Mach 5 and 9.7 on conic geometries at incidence. Axial pressure distributions were determined using CFD tools; later flow interaction effects of short protu berance geometries were investigated by computing transversal and axial pressure distributions on cylindrical and rectangular cross -sections. It has been concluded that short protuberance on blunted cones causes an increase in net force through altering p ressure distribution, with consequent development of useful pitching moments, while similarity in predicted pressure distribution using CFD analysis with an overall prediction accuracy of ± 10% was found with the experimental results in hypersonic range. Increase in protuberance height was found effective, also increased pressure with a larger zone of influence was found similar for a square geometry protuberance.
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