Evaluation of Separation Criteria and Their Application to Separated Flow Analysis.
Final rept. 24 Jan 72-24 Jan 73,
BOEING COMMERCIAL AIRPLANE CO SEATTLE WASH
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Various criteria of turbulent boundary layer separation have been reviewed for two- and three-dimensional flows at subsonic and transonic Mach numbers. Six criteria which predict separation have been evaluated by comparing their predictions with the results of a number of separated flow experiments. A modified form of Townsends criterion predicts satisfactorily both separation pressure and separation location for subsonic flow. An approach based on calculation of the boundary layer characteristics along the surface has proved to be quite satisfactory for predicting both separation pressure and location for subsonic flow. A boundary condition requiring constant pressure on the surface in the separated region has been used to determine the fluid emission. Author Modified Abstract
- Fluid Mechanics