Publication

Abstract : Increase in the angle of attack in high-speed flows offers the possibility of more efficient aerodynamic flow, and this phenomenon is being looked into for improving the performance of high-speed vehicles, from reusable space vehicles to military applications. By increasing this bite angle, there are opportunities to reduce the thermal loads on objects under hypersonic flows, thus reducing the need for higher degrees of thermal dissipation. But even a simple structure can induce complex flow at those speeds and angles of attack, including leeward side separations and vortices. The principal objective of this report was to obtain detailed flow field and surface pressure measurements over asymmetric body like elliptic cone. Detailed measurements of the distribution of pressure were made along the leading edges and on the windward and leeward sides of the models. Furthermore, drag and lift characteristics were calculated using Spalart–Allmaras model and compared to the drag and lift performance on circular cones with same base dimensions to show the advantages of the elliptical cones as a better carrier in hypersonic flows.