CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   FLUENT (https://www.cfd-online.com/Forums/fluent/)
-   -   How to import momentum source for Wankel engine modelling (https://www.cfd-online.com/Forums/fluent/98230-how-import-momentum-source-wankel-engine-modelling.html)

cz5224043 March 6, 2012 08:46

How to import momentum source for Wankel engine modelling
 
I am currently modelling the operation of a wankel engine. As some people have posted in this forum, all difficulties come from the gap between rotor tips and the housing wall. I found some old threads and somebody said that the problem can be done by importing momentum source around the tips. Does anyone know how to carry out this?

Many thanks

Laci March 8, 2012 05:05

You need to creat a new zone in the mesh at the tips.
After this yo will find the source terms at Define/Cell Zone Conditions...
Choose the desired zone and click Source terms and so on.

cz5224043 March 8, 2012 06:59

Quote:

Originally Posted by Laci (Post 348310)
You need to creat a new zone in the mesh at the tips.
After this yo will find the source terms at Define/Cell Zone Conditions...
Choose the desired zone and click Source terms and so on.

Thanks for your advice.

I have tried to mark those cell at tips and then seperate them into a new zone. However, in the dymanic mesh, how can I make the new zones move with the tips? The marked cells were unmarked again after I ran the dynamic mesh.

Catthan May 15, 2012 10:44

Hi cz5224043,

Have you managed to work this issue out somehow?

I've been dealing with the same problem and can't seam to work anything out..

Chears,


All times are GMT -4. The time now is 13:32.