Computational aerodynamic analysis of plate/jet - Interaction for blunted cone-cylinder in hypersonic flows

The present study was carried out as an extension of an earlier work [I] and [2] for a lateral jet/plate interaction for conic geometries at incidence, now extended for a 10.4 degree cone-cylinder configuration for an incoming hypersonic flow at Mach 5.0, 6.0 and 9.7 at different incidence angles. Aerodynamic effects were found analogous to lateral jet-interactions for different Mach numbers. Axial pressure distributions and static aerodynamic coefficients were determined using CFD tools; It has been concluded that short protuberance/ plate installed on a blunted cone-cylinder causes an increase in net normal force through altering pressure distribution, with a consequent development of a useful aerodynamic pitching moment, while similarity in predicted pressure distribution using CFD analysis with an overall prediction accuracy of +/- 10% was found with the experimental results.