PREDICTION OF STREAMLINE CURVATURE EFFECTS ON WALL-BOUNDED TURBULENT FLOWS

Shima, Nobuyuki; Kawai, Takafumi; Okamoto , Masayoshi; Tsuchikura, Ryuta

Turbulence and Shear Flow Phenomena -1 First International Symposium

ISBN Imprimer: 1-56700-135-1

PREDICTION OF STREAMLINE CURVATURE EFFECTS ON WALL-BOUNDED TURBULENT FLOWS

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Nobuyuki Shima Department of Mechanical Engineering, Shizuoka University Johoku 3-5-1, Hamamatsu, 432-8561, Japan

Takafumi Kawai Department of Mechanical Engineering, Shizuoka University Johoku 3-5-1, Hamamatsu, 432-8561, Japan

Masayoshi Okamoto Department of Mechanical Engineering, Shizuoka University, Johoku, Naka-ku, Hamamatsu 432-8561

Ryuta Tsuchikura Department of Mechanical Engineering, Shizuoka University Johoku 3-5-1, Hamamatsu, 432-8561, Japan

Résumé

A low-Reynolds-number second-moment closure without wall-reflection redistribution terms is tested in wall-bounded turbulent flows with streamline curvature. The test cases are two fully-developed curved channel flows and four boundary layers on curved walls. The turbulence model captures main features of the stabilizing and destabilizing effects of streamline curvature, though some notable discrepancies between the predictions and measurements are present in boundary layers on convex walls.

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