Invariant discretization of the k-ϵ model in general co-ordinates for prediction of turbulent flow in complicated geometries
作者： M. Zijlema , A. Segal , P. Wesseling
DOI: 10.1016/0045-7930(94)00031-S
关键词: Numerical analysis 、 Mathematical analysis 、 Turbulence 、 Classical mechanics 、 Discretization 、 Invariant (mathematics) 、 Boundary value problem 、 Mathematics 、 Covariance and contravariance of vectors 、 Curvilinear coordinates 、 Navier–Stokes equations
摘要: Abstract An invariant formulation and finite volume discretization of the standard k-ϵ turbulence model in general curvilinear co-ordinates is presented. The implemented together with incompressible Navier-Stokes equations on staggered grids contravariant flux components as unknowns. A proof that k ϵ are non-negative given. Positive schemes implementation evaluated. Discretization boundary conditions considered. numerical method applied to a turbulent flow across tube bank.
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