Rigid body simulation

SHIKHA BHUYAN · October 13, 2014, 03:28

Hello Friends,
I am trying to study the movement of a plate that will be generated on external water inlet.
For that I have created 3 domain:
(a) Stationary domain;
(b) Rotating domain;
(c) plate (target body;boolean with the rotating domain)
And then formed "A NEW PART" so as to form interface.

I have set the CFX-pre settings. However, error pop-up when I start the solver.I am attaching the outfile for your convenience.
Please help me for this problem. Any helping hand will be highly appreciated.

ghorrocks · October 13, 2014, 05:21

The error message is very clear. All your nodes are on boundaries for a domain. You need to have some nodes in the centre of the domain. You are going to have to mesh with some internal nodes.

SHIKHA BHUYAN · October 13, 2014, 05:57

Thank you sir for your reply.
If I am getting it correctly (as I am not a expertise in this field), I have to mesh the domains with bodymeshing that will create internal nodes.

ghorrocks · October 13, 2014, 06:09

Any meshing technique will fix the problem. Anything which will result in internal nodes.

SHIKHA BHUYAN · October 15, 2014, 00:13

Thank you sir for your reply!I could do the simulation on the plate and have run the solution in cfx (out file could not be attached due to high memory). In the result file the animation has to be shown. But the plate does not move on the influence of water inlet.
The out file seems to be ok for me as no error is showing there. If you can throw any light in this situation.

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October 13, 2014, 05:21		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	The error message is very clear. All your nodes are on boundaries for a domain. You need to have some nodes in the centre of the domain. You are going to have to mesh with some internal nodes.

October 13, 2014, 05:57		#3
SHIKHA BHUYAN Member shikha Join Date: Aug 2013 Posts: 40 Rep Power: 12	Thank you sir for your reply. If I am getting it correctly (as I am not a expertise in this field), I have to mesh the domains with bodymeshing that will create internal nodes.

October 13, 2014, 06:09		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Any meshing technique will fix the problem. Anything which will result in internal nodes.

October 15, 2014, 00:13		#5
SHIKHA BHUYAN Member shikha Join Date: Aug 2013 Posts: 40 Rep Power: 12	Thank you sir for your reply!I could do the simulation on the plate and have run the solution in cfx (out file could not be attached due to high memory). In the result file the animation has to be shown. But the plate does not move on the influence of water inlet. The out file seems to be ok for me as no error is showing there. If you can throw any light in this situation.