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Old   July 13, 2009, 12:38
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thomas
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Hello,

I would like to simulate a flow crossing an orifice and to take into account the deformation of the wall. I think that I should use a moving mesh.
Could be possible to do it with StarCCM+?
How I have to define my mesh?

Thanks in advance.

Thomas.
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Old   July 14, 2009, 23:52
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Jiashing Liu
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Hi,
You can use motion modelling function, ie. mesh morpher or 6DOF. There are tutorials in the user guild (CCM+ 4.04).
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Old   July 15, 2009, 04:25
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Hi,

Many thanks for your reply.
Unfortunately I don't have the user guide 4.04. I have just the user guide 3.06.

Do you know where I can find it.

Thanks.

Thomas.
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Old   July 15, 2009, 05:23
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Nicholas
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I have a copy, it is a 157MB file however, do you have a drop-box account?
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Old   July 15, 2009, 05:37
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That's great if you can send me a copy.
I don't have a drop-box account.
It is easy to create an account?

Thanks.

Thomas
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Old   July 15, 2009, 10:23
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4.04 is already avaible? Last version is 4.02.11?!
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Old   July 16, 2009, 05:11
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4.04 was announced and is available via cd-adapco user services. Latest version is 4.04.011
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Old   July 16, 2009, 05:15
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Sure? I talked with the support and they told me 4.04 isn't avaible yet.
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Old   July 16, 2009, 11:32
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Yes sure. It is still available on User Services FTP area. Announcement email was from July 13th
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Old   July 16, 2009, 12:21
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Hi all,

I don't manage to generate my moving mesh. I would like to take into account the deformation of the wall (of the orifice). I would like to move my mesh according the pressure on the wall.

If somebody have an advice.

Thanks.

Thomas.
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Old   July 20, 2009, 17:46
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Diego Simón Davila
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Hi, CCM+ can calculate the stress in the wall material due to the fluid pressure, but I am almost sure that it can not solve the deformation of the wall caused by it.

King regards, Diego.
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Old   July 20, 2009, 17:54
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Hmm with the wand stress you could be able to run a FEM to get the deformation?!
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Old   July 20, 2009, 18:05
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Diego Simón Davila
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Quote:
Originally Posted by Maddin View Post
Hmm with the wand stress you could be able to run a FEM to get the deformation?!
I have never did it, but I think it is possible. In the morpher model you can specify LinearDisplacement for a boundary, and give it a constant value, a field function, values from tables... So with a FEM solver and generating a table probably you could do it. Maybe not in a full coupled way ( fluid -> structure -> fluid...) automatically, but you could give it at least an iteration (assuming the pressure distribution in the deformed mesh is the same as in the undeformed) by hand.
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Old   July 21, 2009, 06:25
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Thanks for your reply.

Yes I can with the morpher model specify LinearDisplacement for a boundary. I can generate a table with a FEM solver but in order to have accurate results I need to update my table according the variation of pressure on the wall due to its deformation ( fluid -> structure -> fluid -> structure -> fluid...)
So It is not useful.

Maybe I can create a macro...
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Old   July 21, 2009, 06:39
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I think you can use the "export" function to export for every step your results. That should work good.
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Old   July 21, 2009, 07:02
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Yes could be a good idea.
I will try.

Thomas.
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