1985•Numerical Heat TransferRequires access

A (k-ε) MODEL OF TURBULENT FLOW

G. Comini, Stefano Del Giudice

Abstract

A two-equation model of turbulence is employed where the transport of turbulence kinetic energy and the dissipation rate are depicted by transport-type equations, i.e., the two-equation model of turbulence. A finite-element discretization of the (k-ε) turbulence model is described that relies on the sequential approach in the solution. As in finite-difference procedures, velocity and pressure are uncoupled and the equations are solved one after the other, computing the magnitude of the turbulent viscosity from turbulence kinetic energy and dissipation rate.

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Available abstract

Key concepts: Turbulence, K-omega turbulence model, K-epsilon turbulence model, Turbulence modeling, Turbulence kinetic energy, Dissipation, Discretization, Physics