Dynamic mesh problem

October 2, 2004, 02:53

Hello all

I am using dynamic mesh model for running my piston-cylinder problem. Can anyone tell me the following?

1. I can see the motion in "Mesh motion" panel. But when I try to iterate it, the motion is not happening. what may be the reason?

2. Through one face, fluid is entering the domain(pressure-inlet) and pushing the piston to the other side. What boundary condition I have to give to the other face?

Anybody please help....

Regards Karthick

October 11, 2004, 05:47

Try to reduce the time step size and increase the number of time step in order to reduce the movement of the moving boundary at each time step. This's what I did when I got this problem.

October 2, 2004, 02:53	Dynamic mesh problem	#1
Karthick Guest Posts: n/a	Hello all I am using dynamic mesh model for running my piston-cylinder problem. Can anyone tell me the following? 1. I can see the motion in "Mesh motion" panel. But when I try to iterate it, the motion is not happening. what may be the reason? 2. Through one face, fluid is entering the domain(pressure-inlet) and pushing the piston to the other side. What boundary condition I have to give to the other face? Anybody please help.... Regards Karthick

October 11, 2004, 05:47	Re: Dynamic mesh problem	#2
ducvinh Guest Posts: n/a	Try to reduce the time step size and increase the number of time step in order to reduce the movement of the moving boundary at each time step. This's what I did when I got this problem.

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