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Title: Triple-region structure for turbulent flow in a square duct: A finite element approach
Authors: Wang, F.M.
Khoo, B.C. 
Chew, Y.T. 
Yeo, K.S. 
Issue Date: Dec-1994
Citation: Wang, F.M.,Khoo, B.C.,Chew, Y.T.,Yeo, K.S. (1994-12). Triple-region structure for turbulent flow in a square duct: A finite element approach. Finite Elements in Analysis and Design 18 (1-3) : 183-202. ScholarBank@NUS Repository.
Abstract: The Reynolds-averaged Navier-Stokes equations for describing the turbulent flow in a straight square duct are formulated with two different turbulence models. The governing equations are then expanded as a multi-deck structure in a plane perpendicular to the streamwise direction, with each deck characterized by its dominant physical forces as commonly carried out in analytical work using triple-deck expansion. The resulting equations are numerically integrated using higher polynomial (H-P) finite element technique for each cross-sectional plane to be followed by finite difference representation in the streamwise direction until a fully developed state is reached. The computed results using the two different turbulence models show fair agreement with each other, and concur with the vast body of available experimental data. There is also general agreement between our results and the recent numerical works anisotropic κ-ε{lunate} turbulence model. © 1994.
Source Title: Finite Elements in Analysis and Design
ISSN: 0168874X
Appears in Collections:Staff Publications

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