Application of a near-wall turbulence model to the flows over a step with inclined wall

Title & Authors
Application of a near-wall turbulence model to the flows over a step with inclined wall
An, Jong-U; Park, Tae-Seon; Seong, Hyeon-Jin;

Abstract
A nonlinear low-Reynolds-number k-.epsilon. model of Park and Sung was extended to predict the flows over a step with inclined wall, where a boundary layer flow without separation and a separated and reattaching flow coexist. For a better prediction of the flows, a slight modification was made on the function of the wall damping( $\small{f_{\mu}}$) and the model constant ( $\small{C_{{\epsilon}1}}$) in the .epsilon.-equation. The model performance was validated by comparing the model predictions with the experiment. It was shown that the flows over a step with inclined wall are simulated successfully with the present model.ent model.
Keywords
Near-Wall Turbulence Model;Flows Over a Step with Inclined Wall;Wall Limiting;Behavior;Non-Equilibilum Effect;
Language
Korean
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