Flow visualization studies of VTOL aircraft models during Hover in ground effect

Flow visualization studies of VTOL aircraft models during Hover in ground effect

A flow visualization study of several configurations of a jet-powered vertical takeoff and landing (VTOL) aircraft model during hover in ground effect was conducted. A surface oil flow technique was used to observe the flow patterns on the lower surfaces of the model. There were significant configur...

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Hauptverfasser: Mourtos, Nikos J., Couillaud, Stephane, Carter, Dale, Hange, Craig, Wardwell, Doug, Margason, Richard J.
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Aerodynamics
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Couillaud, Stephane
Carter, Dale
Hange, Craig
Wardwell, Doug
Margason, Richard J.
description A flow visualization study of several configurations of a jet-powered vertical takeoff and landing (VTOL) aircraft model during hover in ground effect was conducted. A surface oil flow technique was used to observe the flow patterns on the lower surfaces of the model. There were significant configuration effects. Wing height with respect to fuselage, the presence of an engine inlet duct beside the fuselage, and nozzle pressure ratio are seen to have strong effects on the surface flow angles on the lower surface of the wing. This test was part of a program to improve the methods for predicting the hot gas ingestion (HGI) for jet-powered vertical/short takeoff and landing (V/STOL) aircraft. The tests were performed at the Jet Calibration and Hover Test (JCAHT) Facility at Ames Research Center.
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title Flow visualization studies of VTOL aircraft models during Hover in ground effect
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