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How to track location of centre of gravity for a moving object using UDF

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Old   June 26, 2018, 04:46
Unhappy How to track location of centre of gravity for a moving object using UDF
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Hi

I am trying to calculate terminal velocity for a ball(sphere) when dropped into a tank full of water.

I am using 3ddp, pressure based, dynamic mesh(smoothing and remeshing), laminar, transient solver.

I want to output CG and velocity of this sphere as it moves through the water. But I couldn't find any specific macro to do this in fluent.

Can someone please help me.
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Old   April 2, 2020, 19:15
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Quote:
Originally Posted by valr View Post
Hi

I am trying to calculate terminal velocity for a ball(sphere) when dropped into a tank full of water.

I am using 3ddp, pressure based, dynamic mesh(smoothing and remeshing), laminar, transient solver.

I want to output CG and velocity of this sphere as it moves through the water. But I couldn't find any specific macro to do this in fluent.

Can someone please help me.

I know this is quite old, but if anyone is interested, I believe a UDF can easily output the DT_CG (dt)[x]
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