Further Investigations of Adaptive-Wall Wind Tunnels
Final rept. Aug 1978-Dec 1979
CALSPAN ADVANCED TECHNOLOGY CENTER BUFFALO NY
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The objective of this investigation was to continue the assessment of the Calspan perforated-wall, segmented-plenum adaptive-wall wind tunnel for flows in which the tunnel walls are supercritical. An important aspect of the investigation was the development of a static-pipe measuring technique for determining the normal velocity distributions. This technique was developed to overcome the limitations on the number of flow-angle probe measurements that could be made in the Calspan tunnel. The flow about a static pipe in the presence of modelwall-induced disturbances was analyzed within the framework of slender-body theory to give the relationship between differential pressure measurements across the pipe and the steam-wise derivative of the normal velocity at the pipe centerline.
- Test Facilities, Equipment and Methods
- Fluid Mechanics