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part module - chess board pattern tracer concentration

HS
Hailiang Shen, modified 4 Years ago.

part module - chess board pattern tracer concentration

Youngling Posts: 10 Join Date: 2/14/12 Recent Posts
I am modelling oil spill for a river section with D-Part. I am only modelling instantaneous release, and get a chess board pattern for tracer concentration as seen attached.

To me it does not make sense. Can anyone help to answer why the concentration is not continuous in space? Thanks

Hailiang
Qinghua Ye, modified 4 Years ago.

RE: part module - chess board pattern tracer concentration

Jedi Council Member Posts: 612 Join Date: 3/2/11 Recent Posts
Hi Hailiang,

Interesting! did you also check if the hydrodynamics gives good pattern?

Cheers,

Qinghua
Phil Shepperd, modified 21 Days ago.

RE: part module - chess board pattern tracer concentration

Padawan Posts: 45 Join Date: 12/4/18 Recent Posts
I know this question is very old, but the answer is that the PART timestep is smaller than the timestep in the decoupled HDs.  It needs to be the same!!  Odd, I know.