A new program to develop a Doppler Global Velocimeter (DGV) for application in the High angle-of-Attack Technology Program is discussed. The Flight research instrument system will make non-intrusive multicomponent velocity measurements of the vortical flow field around an aircraft in flight. The DGV will provide a means to obtain airborne experimental data to evaluate and refine computational fluid dynamic models and to correlate with wind-tunnel data sets. The primary use of the instrument system will be to provide a flexible research tool to map the 3D velocity field at various locations around an aircraft during high angle-of-attack maneuvers at subsonic, transonic, and supersonic speeds. Other potential applications may include shock definition and interactions, external stores flow interactions, rotary flow field definition, non-steady flow field definition, measurement of inlet and duct flow field, and measurement of hypersonic flow field in flight.
Doppler Global Velocimetry
1991
2 pages
Report
No indication
English
Avionics , Airborne equipment , Computational fluid dynamics , Flow distribution , Project planning , Research and development , Velocity distribution , Velocity measurement , Ducts , External stores , Flow characteristics , Flow measurement , Hypersonic flow , Inlet flow , Unsteady flow , Wind tunnel tests , Doppler global velocimeter
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