Transactions of the Japan Society of Mechanical Engineers Series B
Online ISSN : 1884-8346
Print ISSN : 0387-5016
Pressure-Strain-Rate Model Including Effect of Streamline Curvature and Prediction of Turbulent Swirling Pipe Flow : 1st Report, Modeling of Pressure-Strain Rate Term
Shuichiro HiraiToshimi TakagiMasahiko Takada
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Keywords: Turbulent Flow
JOURNAL FREE ACCESS

1993 Volume 59 Issue 565 Pages 2777-2781

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Abstract

A new pressure-strain-rate correlation model in a Reynolds stress equation is proposed. When a Reynolds stress equation is written in other than Cartesian coordinates, source-like terms arise in convection terms. The present model incorporates the effect of isotropization on the source-like terms. New model constants are determined to satisfy four basic criteria simultaneously : (1) the effect of streamline curvature, (2) measured stress levels in homogeneous free shear flow, (3) analytical results for rapid distortion theory and (4) return to isotropy in grid turbulence decay.

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