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Old   October 13, 2013, 03:07
Default Define_cg_motion
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Hi guys,

I'm trying to simulate downwards drop of an object at unit acceleration from air into the water. The tricky part is that the acceleration remains the same 1m/s2 even after interacting with the interface. I have no problems hooking the UDF to fluent.(DEFINE_CG_MOTION and DEFINE_SDOFPROPERTIES). However when i tried to preview mesh motion it doesn't move. Is there something wrong with my udf or is that something i have overlooked? Any advice would be greatly appreciated.

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Old   September 7, 2022, 08:55
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did you activate also dynamic mesh?
Is your moving part falling or is it also not moving as well?
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acceleration, cg_motion, falling, hook, udf

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