Search found 3 matches
- Thu May 23, 2024 3:49 pm
- Forum: ROMS Discussion
- Topic: Question about Smagorinsky mixing coefficients
- Replies: 0
- Views: 3913
Question about Smagorinsky mixing coefficients
Hi All, I'm doing some experiments with Smagorinsky viscosity/diffusion applied biharmonically along geopotential surfaces to explore its impacts on numerical mixing. In hmixing.F, I see that Bsmag is controlled by PecletCoef, which is equal to 1/12. Where does the 1/12 come from? It's unclear to me...
- Tue Jul 25, 2023 7:43 pm
- Forum: ROMS Discussion
- Topic: DIAGNOSTICS_TS in step3d_t
- Replies: 3
- Views: 5778
Re: DIAGNOSTICS_TS in step3d_t
A little late, but I believe you're correct. Parker MacCready posted a thread about this about a decade ago, it gets at this issue as well. Took me too long to figure out myself until I discovered that thread, posting this to help aggregate. I figured out the problem with my salt_rate test. salt_rat...
- Tue Jul 25, 2023 7:20 pm
- Forum: ROMS Discussion
- Topic: Calculate tracer vertical diffusion coefficients offline?
- Replies: 0
- Views: 8014
Calculate tracer vertical diffusion coefficients offline?
Is it possible to calculate the vertical tracer diffusion coefficients "AKt" or "AKs" offline with model output? I'm using the GLS k-epsilon vertical mixing scheme for context and would appreciate if there's a way to compute them using the model equations. I'd like to construct a...