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TWiki> Main Web>TWikiUsers>RuggeroPoletto>IdeaAnisotropy (2010-11-15, RuggeroPoletto)

TWiki> Main Web>TWikiUsers>RuggeroPoletto>IdeaAnisotropy (2010-11-15, RuggeroPoletto)

As we have already seen earlier on, to obtain the velocity field from the vorticity one we have to solve the following equation:

Since the Green function for the Poisson equation is: we obtain:

which becomes after few steps:

.

So far we have applied the SEM to the vorticity and then calculated the velocity field. In particular, the structure created were isotropic:

What if we applied a modified SEM:

We get then:

.

I am defining a matlab script which should integrate the u equation!!

I | Attachment | Action | Size | Date | Who | Comment |
---|---|---|---|---|---|---|

m | evaluation_DF_eddy_with_sigma_non_isotropic.m | manage | 5.4 K | 2010-11-15 - 11:32 | RuggeroPoletto |

Topic revision: r4 - 2010-11-15 - 11:32:33 - RuggeroPoletto

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