Prediction of Incompressible Turbulent Separating Flow

[+] Author and Article Information
R. H. Pletcher

Department of Mechanical Engineering, Engineering Research Institute, Iowa State University, Ames, Iowa 50011

J. Fluids Eng 100(4), 427-433 (Dec 01, 1978) (7 pages) doi:10.1115/1.3448702 History: Received November 27, 1977; Online October 12, 2010


The predictions of several turbulence models are compared with experimental data for flows containing regions of recirculation using an inverse finite-difference method to solve the boundary layer equations. A new turbulence model which employs a one-dimensional transport equation for the outer layer length scale is seen to provide the best agreement with experimental measurements beyond separation. Use of the solution of a modeled form of the turbulence kinetic energy equation to supply a turbulence velocity scale in models resulted in no noticeable improvement in predictions over models which utilized purely algebraic and mean flow quantities to obtain this velocity scale.

Copyright © 1978 by ASME
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