It is an Eddy viscosity model which is a class of turbulence models used to calculate the Reynolds stresses. The k-epsilon (\(k-\epsilon\)) model for turbulence is the most common to simulate the mean flow characteristics for turbulent flow conditions. Hence, the difference between different turbulent models is the methodology to calculate turbulent viscosity. Observing equation 2 we realize that once we solve for the turbulent viscosity \((\mu_t)\) we can solve the RANS equation 1. $$ Įquation 2 is a combined equation for the shear and normal components of Reynolds stresses. The Reynolds-averaged Navier Stokes (RANS) equation in tensor form\(^1\) can be written as: This document sheds light on the popular k-epsilon turbulence models. The SimScale CFD solver uses its in-house version of the widely accepted industry standard turbulence models. SimScale allows different methods to model the turbulent effects appearing in a CFD simulation. SimScale Learning Center Access 85 SimScale CFD & FEA training videos.SimScale CPD for AEC Achieve a SimScale CPD for AEC professionals.Webinars & Workshops Register for upcoming webinars & watch on-demand replays.Press Releases Read our latest press releases & news stories.Forum Discuss & get help on CAE & SimScale topics.Whitepapers Download & read comprehensive CAE whitepapers. ![]()
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