A real-time method of determining positions of laminar-to-turbulent transition region, separation and reattachment points and stagnation points using an array of simultaneously operated surface-mounted hot-film sensors has been developed and applied to a wind-tunnel test of a multielement airfoil model. Determination of various types of transitions and flow directions in various regimes of flows seen on multielement airfoils are possible without precise sensor calibration or laborious post-test data analysis. The results agree with established method and theoretical methods, but determination of turbulent reattachment points are not yet satisfactory.
Surface hot-film method for the measurement of transition, separation and reattachment points
AIAA, Fluid Dynamics Conference ; 1993 ; Orlando, FL, United States
1993-07-01
Aufsatz (Konferenz)
Keine Angabe
Englisch
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