sunfluidh:sgs_model_setup_namelist
Différences
Ci-dessous, les différences entre deux révisions de la page.
Les deux révisions précédentesRévision précédenteProchaine révision | Révision précédente | ||
sunfluidh:sgs_model_setup_namelist [2016/11/11 15:24] – [Weight_Of_Grid_Filtering] yann | sunfluidh:sgs_model_setup_namelist [2016/11/28 17:50] (Version actuelle) – yann | ||
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===== Namelist SGS_Model ===== | ===== Namelist SGS_Model ===== | ||
+ | __** Not for the release SUNFLUIDH_EDU**__ .\\ | ||
This data setup allows the user to use a LES subgrid model to modelize the subgrid scales effects of turbulence.\\ | This data setup allows the user to use a LES subgrid model to modelize the subgrid scales effects of turbulence.\\ | ||
The different models are proposed here to take into account the dynamical scales and the thermal scales (when heat transfer is considered). Some LES models results from the research performed at LIMSI. Their use depends on the type of flow considered. | The different models are proposed here to take into account the dynamical scales and the thermal scales (when heat transfer is considered). Some LES models results from the research performed at LIMSI. Their use depends on the type of flow considered. | ||
+ | ----- | ||
+ | ==== Types and definitions of the data setup ==== | ||
+ | ----- | ||
==== LES_Enabled ==== | ==== LES_Enabled ==== | ||
* Type : boolean value | * Type : boolean value | ||
Ligne 34: | Ligne 36: | ||
==== Weight_Of_Grid_Filtering ==== | ==== Weight_Of_Grid_Filtering ==== | ||
* Type : real value | * Type : real value | ||
- | * This parameter is associated to the length-scale of the filter chosen in some LES models such as dynamic models or mixed-scales models in order to estimate the subgrid turbulence scales. By considering $\Delta$ as the grid length scale and $\hat{\Delta}$ the filter length scale, the most classical values of the parameter are : | + | * This parameter is associated to the length-scale of the filter chosen in some LES models such as dynamic models or mixed-scales models in order to estimate the subgrid turbulence scales. By considering $\Delta$ as the grid length scale and $\hat{\Delta}$ |
* Weight_Of_Grid_Filtering= 2.0 : $\hat{\Delta}= \sqrt{6}.\Delta$ | * Weight_Of_Grid_Filtering= 2.0 : $\hat{\Delta}= \sqrt{6}.\Delta$ | ||
* Weight_Of_Grid_Filtering= 4.0 : $\hat{\Delta}= 2.\Delta$ | * Weight_Of_Grid_Filtering= 4.0 : $\hat{\Delta}= 2.\Delta$ | ||
* Weight_Of_Grid_Filtering= 6.0 : $\hat{\Delta}= \sqrt{3}.\Delta$ | * Weight_Of_Grid_Filtering= 6.0 : $\hat{\Delta}= \sqrt{3}.\Delta$ | ||
sunfluidh/sgs_model_setup_namelist.txt · Dernière modification : 2016/11/28 17:50 de yann