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Pressure sweep generator for the NAL 4-ft trisonic wind tunnel

By G Narayan, V Mahalingam and KV Srikantan


For efficient testing of aeroelastic models in wind tunnels, a programmed variation of the dynamic pressure during a run is desirable. A system which provides variation of dynamic pressure resulting from a variation of stagnation pressure, in either a step-mode or a continuous mode has been designed and integrated with the PRV control systems of the HAL 4-ft trisonic wind tunnel. This report describes the salient features of the system and provides its operating instructions

Topics: Aerodynamics
Publisher: National Aeronautical Laboratory
Year: 1975
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