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RESEARCH PAPERS

Prediction of Incompressible Separated Boundary Layers Including Viscous-Inviscid Interaction

[+] Author and Article Information
O. K. Kwon, R. H. Pletcher

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

J. Fluids Eng 101(4), 466-472 (Dec 01, 1979) (7 pages) doi:10.1115/1.3449012 History: Received January 10, 1979; Online October 12, 2010

Abstract

A viscous-inviscid interaction calculation procedure is described for viscous flows containing separation bubbles based on an inverse finite-difference boundary layer method and a small disturbance Cauchy integral formulation for the inviscid flow. The viscous-inviscid matching procedure used appears to eliminate the need for smoothing or under-relaxation which is commonly required by other methods. Turbulence modeling for transitional separation bubbles is discussed and two empirically-based transition models are evaluated for bubble flows. Predictions for a laminar and a laminar-turbulent transitional bubble are presented. These predictions are compared with results from other prediction methods and with experimental measurements for the transitional bubble flow.

Copyright © 1979 by ASME
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