topic Symmetry and rotary element in CFD Forum

Symmetry and rotary element

Anonymous — Tue, 02 Jun 2015 08:51:56 GMT

Hi all,

Has anyone of you tryied to use symmetry boundary condition when simulating rotating elements (whith the use of rotating region)? I have an anchor type impeller and tryied to run the simulation only with one half of the anchor (also one half of tank and RR) but unfortunatelly the solver crashed.

I am curious whether it is possible or not.

Waiting for any answer.

Paweł

Re: Symmetry and rotary element

Jon.Wilde — Tue, 02 Jun 2015 09:16:56 GMT

Hi Pawel,

CFD needs full and symmetric geometry within a rotating region for the solver to work correctly. I think that would be the solution here.

There is a periodic approach also, which might be worth considering, depending on your geometry.

Hope that helps!

Jon

Re: Symmetry and rotary element

Anonymous — Tue, 02 Jun 2015 11:22:28 GMT

Thank you for the reply, Unfortunately, my geometry has only one symmetry plane and the periodic approach will not work here.