Search found 6 matches
- Tue Apr 19, 2022 10:47 am
- Forum: ROMS Discussion
- Topic: error:different horizontal mixing scheme
- Replies: 10
- Views: 15500
Re: error:different horizontal mixing scheme
No, no, no MIX_S_TS! It's a terrible thing to do with a sigma coordinate. Why wouldn't MIX_GEO work? My biggest problems with it involve wetting and drying and realistic bathymetry. I don't know what you are trying. I'm just suggesting trying a shorter timestep so that you can rule out CFL troubles...
- Thu Apr 14, 2022 8:53 am
- Forum: ROMS Discussion
- Topic: error:different horizontal mixing scheme
- Replies: 10
- Views: 15500
Re: error:different horizontal mixing scheme
Yes, there's a CFL condition. There's also the timescale of damping on the scales you want to damp (2 dx) and the timescale of damping on scales you don't want to damp. A CFL of 1.0 will be unstable. What are you shooting for? But my case can run with the same condition except I use VIS2 and TNU2, ...
- Wed Apr 13, 2022 3:04 am
- Forum: ROMS Discussion
- Topic: error:different horizontal mixing scheme
- Replies: 10
- Views: 15500
- Tue Apr 12, 2022 3:01 am
- Forum: ROMS Discussion
- Topic: error:different horizontal mixing scheme
- Replies: 10
- Views: 15500
- Tue Apr 12, 2022 1:55 am
- Forum: ROMS Discussion
- Topic: error:different horizontal mixing scheme
- Replies: 10
- Views: 15500
- Mon Apr 11, 2022 8:39 am
- Forum: ROMS Discussion
- Topic: error:different horizontal mixing scheme
- Replies: 10
- Views: 15500
error:different horizontal mixing scheme
Dear ROMS user, As a beginner I meet some problem that: firstly I defined smagorinsky option and I want to define VISC4' and TNU4' s value, so I caculate these parameter with the (ΔX./pi).^4./dt. The model is always blow-up in Max speed and Max rho, no matter how I change the value of VISC4 and TNU4...