Hi,
I am using WRF-LES with a TKE1.5 subgrid model. This model uses a subgrid TKE variable to model the deviatoric part of the stress tensor :
\tau_{ij} - 1/3 \tau_{kk}
With this kind of model, it is common to add the removed stress-tensor trace (second term) to the pressure (thus getting a modified pressure)
I went through the Skamarock et al. (2019) and found no mention to this term. I am a bit confused with the pressure-based vertical coordinate system and I am wondering if this term is somehow added somewhere or is it just supposed to be negligible ?
Thank you,
Mathieu
I am using WRF-LES with a TKE1.5 subgrid model. This model uses a subgrid TKE variable to model the deviatoric part of the stress tensor :
\tau_{ij} - 1/3 \tau_{kk}
With this kind of model, it is common to add the removed stress-tensor trace (second term) to the pressure (thus getting a modified pressure)
I went through the Skamarock et al. (2019) and found no mention to this term. I am a bit confused with the pressure-based vertical coordinate system and I am wondering if this term is somehow added somewhere or is it just supposed to be negligible ?
Thank you,
Mathieu