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Three‐dimensional numerical simulation of compound meandering open channel flow by the Reynolds stress model
Author(s) -
Jing H.,
Guo Y.,
Li C.,
Zhang J.
Publication year - 2008
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1855
Subject(s) - turbulence , mechanics , reynolds stress , open channel flow , shear stress , reynolds number , reynolds stress equation model , flow (mathematics) , reynolds averaged navier–stokes equations , finite volume method , computational fluid dynamics , chézy formula , geology , k epsilon turbulence model , physics , k omega turbulence model
Turbulent flow in a compound meandering open channel with seminatural cross sections is one of the most complicated turbulent flows as the flow pattern is influenced by the combined action of various forces, such as centrifugal force, pressure, and shear stresses. In this paper, a three‐dimensional (3D) Reynolds stress model (RSM) is adopted to simulate the compound meandering channel flows. Governing equations of the flow are solved numerically with finite‐volume method. The velocity fields, wall shear stresses, and Reynolds stresses are calculated for a range of input conditions. Good agreement between the simulated results and measurements indicates that RSM can successfully predict the complicated flow phenomenon. Copyright © 2008 John Wiley & Sons, Ltd.