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February 10, 2007, 18:17 |
Dynamic Mesh, (Define_Geom) UDF
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#1 |
Guest
Posts: n/a
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Dear FLUENT 6.2 user;
Can I use define_geom function to define a time dependent geometry? I want to model the 2D flow field around a rigid plate (or line in 2D), oscillates (in a specific angular interval) around one of its edges. with the best regards, ROOZBEH |
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February 27, 2007, 02:16 |
Re: Dynamic Mesh, (Define_Geom) UDF
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#2 |
Guest
Posts: n/a
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Hi,
You're modelling a rigid plate so DEFINE_GEOM is a good macro for that. You can use it to prescribe angular velocity of the rotation, so yeah the orientation will be time dependent. I don't quite get what you mean by oscillation around the edges though, that sounds like it's a 3D problem. As far as I understand DEFINE_GEOM cannot provide relative movement between nodes(ie. non-rigid body), for that you use DEFINE_GRIDMOTION. In other words DEFINE_GEOM can only change the orientaion of a dynamic zone, and not the actual shape of it. |
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August 28, 2009, 05:52 |
Define_gridmotion
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#3 | |
Senior Member
Illya Shevchuk
Join Date: Aug 2009
Location: Darmstadt, Germany
Posts: 176
Rep Power: 16 |
Quote:
Thanks in advance! |
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August 28, 2009, 08:28 |
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#4 |
Senior Member
Illya Shevchuk
Join Date: Aug 2009
Location: Darmstadt, Germany
Posts: 176
Rep Power: 16 |
Ok, it's already done.
The macro is called DEFINE_GRID_MOTION and not DEFINE_GRIDMOTION |
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