Finite volume computation of incompressible turbulent flows in general co-ordinates on staggered grids |
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Authors: | M. Zijlema A. Segal P. Wesseling |
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Abstract: | A brief review of the computation of incompressible turbulent flow in complex geometries is given. A 2D finite volume method for the calculation of turbulent flow in general curvilinear co-ordinates is described. This method is based on a staggered grid arrangement and the contravariant flux componets are chosen as primitive variables. Turbulence is modelled either by the standard k–ε model or by a k–ε model based on RNG theory. Convection is approximated with central differences for the mean flow quantities and a TVD-type MUSCL scheme for the turbulence equations. The sensitivity of the method to the grid properties is investigated. An application of this method to a complex turbulent flow is presented. The results of computations are compared with experimental data and other numerical solutions and are found to be satisfactory. |
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Keywords: | finite volume curvilinear co-ordinates staggered grid turbulent recirculating flow |
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