Problem with dynamic mesh..urgent!!

April 21, 2006, 11:15

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

April 21, 2006, 11:22

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

April 21, 2006, 11:24

Could you tell me how to do it? Can u give me a little idea about it?

schlappeseppel124 · April 21, 2006, 11:54

Perhaps something like: if (cg_position - wallposition) < 1e-3 then v = 0

April 26, 2006, 18:38

Could anyone tell me how to find the co-ordinates of the center of gravity?

April 21, 2006, 11:15	Problem with dynamic mesh..urgent!!	#1
Shanti Guest Posts: n/a	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

April 21, 2006, 11:22	Re: Problem with dynamic mesh..urgent!!	#2
HVN Guest Posts: n/a	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

April 21, 2006, 11:24	Re: Problem with dynamic mesh..urgent!!	#3
Shanti Guest Posts: n/a	Could you tell me how to do it? Can u give me a little idea about it?

April 21, 2006, 11:54	Re: Problem with dynamic mesh..urgent!!	#4
HVN Guest Posts: n/a	Perhaps something like: if (cg_position - wallposition) < 1e-3 then v = 0 schlappeseppel124 likes this.

April 26, 2006, 18:38	Re: Problem with dynamic mesh..urgent!!	#5
Shanti Guest Posts: n/a	Could anyone tell me how to find the co-ordinates of the center of gravity?

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