Changeset 11386


Ignore:
Timestamp:
2019-08-01T17:26:28+02:00 (8 months ago)
Author:
jchanut
Message:

#2216, correct description of grid scale dependent mixing coefficient

File:
1 edited

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  • NEMO/trunk/doc/latex/NEMO/subfiles/chap_LDF.tex

    r11336 r11386  
    399399  A_l = \left\{ 
    400400    \begin{aligned} 
    401       & \frac{\max(e_1,e_2)}{e_{ref}} A_o^l           & \text{for laplacian operator } \\ 
    402       & \frac{\max(e_1,e_2)^{3}}{e_{ref}^{3}} A_o^l          & \text{for bilaplacian operator } 
     401      & \frac{1}{2} U_{scl}  \max(e_1,e_2)         & \text{for laplacian operator } \\ 
     402      & \frac{1}{12} U_{scl}  \max(e_1,e_2)^{3}             & \text{for bilaplacian operator } 
    403403    \end{aligned} 
    404404  \right. 
    405405\end{equation} 
    406 where $e_{ref}$ is a reference grid size harcoded to a $1^{\circ}$ grid size (\ie $e_{ref}\approx 111 km$), 
    407 and $A_o^l$ is the user defined mixing coefficient defined according to  \autoref{eq:constantah}. 
     406where $U_{scl}$ is a user defined velocity scale (\np{rn\_Ud}, \np{rn\_Uv}). 
    408407This variation is intended to reflect the lesser need for subgrid scale eddy mixing where 
    409408the grid size is smaller in the domain. 
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