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Prediction of streamline curvature effects on wall-bounded turbulent flows

โœ Scribed by Nobuyuki Shima; Takafumi Kawai; Masayoshi Okamoto; Ryuta Tsuchikura

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
301 KB
Volume
21
Category
Article
ISSN
0142-727X

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โœฆ Synopsis

A low-Reynolds-number second-moment closure without wall-reยฏection redistribution terms is tested in wall-bounded turbulent ยฏows with streamline curvature. The turbulence model was previously shown to give good predictions for a fully developed channel ยฏow, boundary layers in zero, adverse and favorable pressure gradients, plane and round jets, and ยฏows with wall blowing and suction. In the present study, the model is used to calculate two fully developed curved channel ยฏows and four boundary layers on curved walls. The turbulence model captures main features of the stabilizing and destabilizing eects of streamline curvature, though some notable discrepancies between the predictions and measurements are present in boundary layers on convex walls.

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