Publications

Hypersonic Fluid-Structure Interactions on a Slender Cone

Casper, Katya M.; Beresh, Steven J.; Henfling, John F.; Spillers, Russell W.; Hunter, Patrick H.; Spitzer, Seth M.

Fluid-structure interactions were studies on a 7° half-angle cone in the Sandia Hypersonic Wind Tunnel at Mach 5 and 8 and in the Purdue Boeing/AFOSR Mach 6 Quiet Tunnel. A thin composite panel was integrated into the cone and the response to boundary-layer disturbances was characterized by accelerometers on the backside of the panel. Here, under quiet-flow conditions at Mach 6, the cone boundary layer remained laminar. Artificially generated turbulent spots excited a directionally dependent panel response which would last much longer than the spot duration.