How to import momentum source for Wankel engine modelling

cz5224043 · March 6, 2012, 08:46

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

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,

March 6, 2012, 08:46	How to import momentum source for Wankel engine modelling	#1
cz5224043 New Member Torres Join Date: Mar 2012 Posts: 9 Rep Power: 14	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

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March 8, 2012, 05:05		#2
Laci Member anonym Join Date: Mar 2009 Posts: 65 Rep Power: 17	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.

May 15, 2012, 10:44		#4
Catthan Member Join Date: May 2010 Posts: 57 Rep Power: 15	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,