Summary
The roughness extension of Knopp, Eisfeld and Calvo (KEC) [4] for k – ω type turbulence models has been applied to the flow through rough pipes, over a flat plate and around the NACA 652-215 airfoil with a rough surface. The results are compared to predictions using the boundary condition originally devised by Wilcox [11] for rough surfaces, and to predictions with the Spalart-Allmaras model with the Boeing roughness extension by Aupoix and Spalart (ASB) [2]. Good agreement with experiments has been achieved with respect to the influence of the roughness on the velocity profile, the skin friction coefficient and the loss in lift.
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Eisfeld, B., Knopp, T., Calvo, J.B. (2010). Application of a New Roughness Extension for k − ω Turbulence Models. In: Dillmann, A., Heller, G., Klaas, M., Kreplin, HP., Nitsche, W., Schröder, W. (eds) New Results in Numerical and Experimental Fluid Mechanics VII. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 112. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-14243-7_6
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DOI: https://doi.org/10.1007/978-3-642-14243-7_6
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