# K-omega models

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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 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. | ||

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

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+ | 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 == |

## Revision as of 09:16, 15 May 2008

## Introduction

The K-omega model is one of the most common 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, . The second transported variable in this case is the specific dissipation, . It is the variable that determines the scale of the turbulence, whereas the first variable, , determines the energy in the turbulence.

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