CMS-Flow:Hydro Eqs: Difference between revisions

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- eps_{ij3} f_c u_j h = g \frac{\partial \eta }{\partial x_j}
- eps_{ij3} f_c u_j h = g \frac{\partial \eta }{\partial x_j}
  + \frac{1}{\rho_0} \frac{\partial p_a }{\partial x_j}
  + \frac{1}{\rho_0} \frac{\partial p_a }{\partial x_j}
+ \frac{\tau_i }{\rho}
</math>
</math>


<math>
<math>
   + \frac{\partial }{\partial x_j} \biggl[ K_{sa} h \frac{\partial C_{sa} }{\partial x_j} \biggr \frac{\tau_i }{\rho} ] </math>
   + \frac{\partial }{\partial x_j} \biggl[ \mu h \frac{\partial C_{sa} }{\partial x_j} \biggr ] </math>


where <math> t </math> is time, <math> U_j </math> is the current velocity in the jth direction, <math> h </math> is the total water depth, <math>  C_{sa} </math> is the salinity concentration, and <math> K_{sa} </math> is the salinity mixing coefficient.
where <math> t </math> is time, <math> U_j </math> is the current velocity in the jth direction, <math> h </math> is the total water depth, <math>  C_{sa} </math> is the salinity concentration, and <math> K_{sa} </math> is the salinity mixing coefficient.

Revision as of 22:04, 12 May 2010

Governing Equation

The depth-averaged 2-D continuity and momentum equations are given by

        
        

where is time, is the current velocity in the jth direction, is the total water depth, is the salinity concentration, and is the salinity mixing coefficient.