# K-omega models

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 Revision as of 09:16, 12 June 2007 (view source)Jola (Talk | contribs)← Older edit Latest revision as of 12:43, 12 October 2011 (view source) (One intermediate revision not shown) Line 2: Line 2: == Introduction == == Introduction == - The K-omega model is one of the most common [[Turbulence modeling|turbulence models]]. It is a [[Two equation models|two equation model]], that means, it includes two extra transport equations to represent the turbulent properties of the flow. This allows a two equation model to account for history effects like convection and diffusion of turbulent energy. + The K-omega model is one of the most commonly used [[Turbulence modeling|turbulence models]]. It is a [[Two equation models|two equation model]], that means, it includes two extra transport equations to represent the turbulent properties of the flow. This allows a two equation model to account for history effects like convection and diffusion of turbulent energy. + The first transported variable is turbulent kinetic energy, $k$.  The second transported variable in this case is the specific dissipation, $\omega$. It is the variable that determines the scale of the turbulence, whereas the first variable, $k$, determines the energy in the turbulence. The first transported variable is turbulent kinetic energy, $k$.  The second transported variable in this case is the specific dissipation, $\omega$. It is the variable that determines the scale of the turbulence, whereas the first variable, $k$, determines the energy in the turbulence. + + To calculate boundary conditions for this model see [[Turbulence free-stream boundary conditions|turbulence free-stream boundary conditions]]. == Common used K-omega models == == Common used K-omega models ==

## Introduction

The K-omega model is one of the most commonly used turbulence models. It is a two equation model, that means, it includes two extra transport equations to represent the turbulent properties of the flow. This allows a two equation model to account for history effects like convection and diffusion of turbulent energy.

The first transported variable is turbulent kinetic energy, $k$. The second transported variable in this case is the specific dissipation, $\omega$. It is the variable that determines the scale of the turbulence, whereas the first variable, $k$, determines the energy in the turbulence.

To calculate boundary conditions for this model see turbulence free-stream boundary conditions.

## Miscellaneous

1. Near-wall treatment for k-omega models