Since we also have wave measurements, we can address the question of how the wind stress depends on the wave field. We have identified burst structures in the velocity data and are currently examining the effects of wind speed and wave conditions on burst periods. The viability of Magnetic Levitation trains depends critically on aerodynamic drag at speeds up to 300 mph. This study, funded by DOT, addresses quantifying the drag and finding means to minimize it. The tests are done in the VPI 6 ft. subsonic wind tunnel.
Complementary analysis is directed at new aerodynamic designs including cost and manufacturability.
This effort involves experimental studies in the VPI and NASA supersonic wind tunnels and supporting numerical predictions for injection. A main application is to the combustion chamber for the National Aerospace Plane. Hot-wire, LDA and optical methods are employed, and the emphasis is on the detailed structure of the turbulence. The effort is supported by the Navy, NASA and industry. This research involves the development and testing of devices for the direct measurement of skin friction in hot, high-speed flows.