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Guest Chris Nielsen

Eddy viscosity

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Guest Chris Nielsen

The horizontal-mixing eddy-viscosity can be defined as a constant value or can be calculated using the Smagorinsky model.  The Smagorinsky model sets the diffusivity proportional to the local strain rate. 

 

The vertical-mixing eddy-viscosity can be defined as a constant value or can be calculated using a parametric model.  The parametric model is based on a parabolic eddy-viscosity profile and applies the Munk & Anderson limiters in the case of stable stratification.

 

Upper and lower bound values can be specified for the horizontal and vertical eddy-viscosities.

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