Accession Number : AD0766845

Title :   Prediction of the Turbulent Boundary Layer Separation.

Descriptive Note : Technical rept.,

Corporate Author : COLORADO STATE UNIV FORT COLLINS FLUID DYNAMICS AND DIFFUSION LAB

Personal Author(s) : Chou,Fang-Kuo ; Sandborn,Virgil A.

Report Date : JUL 1973

Pagination or Media Count : 113

Abstract : A method for the prediction of the location of turbulent boundary layer separation is developed, based on an inner and outer velocity distributions technique and a separation criterion which applies directly to the separation position. For the inner region, the model employs empirical one-parameter boundary layer separation profiles. For the outer region the equivalent velocity distribution for the flow on a flat plate has been used. The resulting formula for predicting the separation position is a simple nonlinear algebraic equation. The method is tested by comparing with several well documented separation measurements. The results show good agreement. An experimental study for a turbulent boundary layer up to and through the separation region has been made to further demonstrate the method. (Modified author abstract)

Descriptors :   (*TURBULENT BOUNDARY LAYER, FLOW SEPARATION), (*FLOW SEPARATION, MATHEMATICAL PREDICTION), VELOCITY, STATISTICAL DISTRIBUTIONS, FLAT PLATE MODELS, EQUATIONS OF MOTION, ALGEBRA, MODEL TESTS, DIFFUSERS, SHEAR STRESSES, WALLS

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE