Development of projection and artificial compressibility methodologies using the approximate factorization technique

International Journal for Numerical Methods in Fluids - Tập 19 Số 11 - Trang 1013-1038 - 1994
A. Pentaris1, K. Nikolados1, S. Tsangaris1
1Laboratory of Aerodynamics, National Technical University of Athens, PO Box 64070, 15710 Zografou, Athens, Greece

Tóm tắt

AbstractPredictions for two‐dimensional, steady, incompressible flows under both laminar and turbulent conditions are presented. The standard k‐ϵ turbulence model is used for the turbulent flows. The computational method is based on the approximate factorization technique. The coupled approach is used to link the equations of motion and the turbulence model equations. Mass conservation is enforced by either the pseudocompressibility method or the pressure correction method. Comparison of the two methods shows a superiority of the pressure correction method. Second‐ and fourth‐order artifical dissipation terms are used in order to achieve good convergence and to handle the turbulence model equations efficiently. Several internal and external test cases are investigated, including attached and separated flows.

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International Journal for Numerical Methods in Fluids

Tập 19 Số 11

1013-1038

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