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http://dx.doi.org/10.6112/kscfe.2011.16.4.028

REYNOLDS NUMBER EFFECTS ON TURBULENT PIPE FLOW PART I. MEAN FLOW FIELD AND LOW-ORDER STATISTICS  

Kang, Chang-Woo (인하대학교 대학원 기계공학과)
Yang, Kyung-Soo (인하대학교 기계공학부)
Publication Information
Journal of computational fluids engineering / v.16, no.4, 2011 , pp. 28-38 More about this Journal
Abstract
Large eddy simulation(LES) of fully developed turbulent pipe flow has been performed to investigate the effect of Reynolds number on the flow field at $Re_{\tau}$=180, 395, 590 based on friction velocity and pipe radius. A dynamic subgrid-scale model for the turbulent subgrid-scale stresses was employed to close the governing equations. The mean flow properties, mean velocity profiles and turbulent intensities obtained from the present LES are in good agreement with the previous numerical and experimental results currently available. The Reynolds number effects were observed in the mean velocity profile, root-mean-square of velocity fluctuations, Reynolds shear stress and turbulent viscosity.
Keywords
LES; Turbulent Pipe Flow; Reynolds Shear Stress;
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