Search found 3 matches

by jwenegrat
Fri Nov 16, 2018 5:46 pm
Forum: ROMS Problems
Topic: Growing oscillations when using TS_MPDATA
Replies: 4
Views: 2450

Re: Growing oscillations when using TS_MPDATA

Sorry about the delay, and thanks for your offer of help. Before you spend any of your time, I think there's some more I can look at on my end, but it's good to know that this behavior is at least unexpected. My current working hypothesis is that the blow-up is a result of a growing instability that...
by jwenegrat
Mon Oct 29, 2018 11:46 pm
Forum: ROMS Problems
Topic: Growing oscillations when using TS_MPDATA
Replies: 4
Views: 2450

Re: Growing oscillations when using TS_MPDATA

Sorry about the .ps files, attached here as jpegs. These are just quick plots from ncview, but it gives the general picture.

In terms of domain size it is 200 x 100 x 60 (NX, NY, NZ). The uniform vertical grid case I tried was NZ=250.

Thanks,
Jacob
by jwenegrat
Mon Oct 29, 2018 10:47 pm
Forum: ROMS Problems
Topic: Growing oscillations when using TS_MPDATA
Replies: 4
Views: 2450

Growing oscillations when using TS_MPDATA

Hi All, I'm running an idealized channel simulation (periodic in the y-direction), with a linear bottom slope in the x-direction. Domain is 60 km x 30 km x 1600 m (resolution 300 m x 300 m x 2-30 m). The simulation begins with uniform flow in the positive y-direction, and a uniform stratification. I...