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RE: A strange bug for Nonh=1 in regular grids?

IC
instjack cheng, modified 3 Years ago.

A strange bug for Nonh=1 in regular grids?

Capillary Posts: 3 Join Date: 12/7/11 Recent Posts
I just want to learn how to run annonhydrostatic model.
So I set two grids with different nx and ny.
In grid one, the nx=1000, ny=500,and the model runs well.
In grid two, the nx=200,ny=100,but the model goes wrong.
So what's wrong?
Arnold van Rooijen, modified 3 Years ago.

RE: A strange bug for Nonh=1 in regular grids?

Swell Posts: 239 Join Date: 11/7/11 Recent Posts
Hi Jack,

Sorry but you would have to be a bit more specific than that: what do you mean with 'goes wrong'? Does the model crash? Or do you get unexpected results? Are there any other differences than just the grid size?

Arnold
IC
instjack cheng, modified 3 Years ago.

RE: A strange bug for Nonh=1 in regular grids?

Capillary Posts: 3 Join Date: 12/7/11 Recent Posts
Hi Arnold,
Thanks for your reply.
There are two sets of grids with same dx and dy, but different nx and ny,in my tests.
In grid one, the nx=1000, ny=500,and the model runs well.The result of the simulation is convergent and reasonable,as shown in figure one.
In grid two, the nx=200,ny=100,but the model goes wrong.The result of the simulation is not convergent, and the water level and flow field is obviously deformed, as shown in figure two.