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-   -   Problem with dynamic mesh..urgent!! (http://www.cfd-online.com/Forums/fluent/40685-problem-dynamic-mesh-urgent.html)

Shanti April 21, 2006 11:15

Problem with dynamic mesh..urgent!!
 
Hi

I am modelling a plate coming dwon onto the surface of liquid. When i am doing this using DEFINE_CG_MOTION, the plate passes through the liquid as well as the wall below the liquid. I dont what it to happen. Could anyone help me with it? Does the DEFINE_CG_MOTION macros takes into account solid body motion?

Thanks in advance... shanti

HVN April 21, 2006 11:22

Re: Problem with dynamic mesh..urgent!!
 
You need to define more accuratly your wall motion in order to avoid such case: it doesn't take into account interactions between 2 solids except if you precise this in your udf programs

Shanti April 21, 2006 11:24

Re: Problem with dynamic mesh..urgent!!
 
Could you tell me how to do it? Can u give me a little idea about it?

HVN April 21, 2006 11:54

Re: Problem with dynamic mesh..urgent!!
 
Perhaps something like: if (cg_position - wallposition) < 1e-3 then v = 0

Shanti April 26, 2006 18:38

Re: Problem with dynamic mesh..urgent!!
 
Could anyone tell me how to find the co-ordinates of the center of gravity?


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