Kinetic energy subgrid-scale model
From CFD-Wiki
(Difference between revisions)
m |
CrochIvare (Talk | contribs) (varlabascal) |
||
Line 1: | Line 1: | ||
+ | libocacpa | ||
The subgrid-scale kinetic energy is defined as <br> | The subgrid-scale kinetic energy is defined as <br> | ||
:<math> k_{\rm sgs} = \frac{1}{2}\left(\overline{u_k^2} - \overline{u}_k^2 \right) </math> | :<math> k_{\rm sgs} = \frac{1}{2}\left(\overline{u_k^2} - \overline{u}_k^2 \right) </math> |
Revision as of 09:12, 17 December 2008
libocacpa
The subgrid-scale kinetic energy is defined as
The subgrid-scale stress can then be written as
this gives us the transport equation for subgrid-scale kinetic energy
The subgrid-scale eddy viscosity,, is computed using as