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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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Time dependent moving

Posted Mar 3, 2012, 9:20 a.m. EST Version 4.2 2 Replies

JiYoung Park
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Hi,

I want to move the material from t=0 to t=5 seconds and stop after 5 seconds with moving mesh.(velocity=1)

So I typed, t*(t>0)-t*(t>5)

But, i found the material moves back to its original place after 5 seconds.

Plz help

Thanks

2 Replies Last Post Mar 3, 2012, 10:31 a.m. EST
Jaap Verheggen
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Posted: 1 decade ago Mar 3, 2012, 9:44 a.m. EST
Is this supposed to be an equation for velocity or for displacement.

You're not giving a lot of information.
Is this supposed to be an equation for velocity or for displacement. You're not giving a lot of information.
JiYoung Park
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Posted: 1 decade ago Mar 3, 2012, 10:31 a.m. EST
I got it!

It was displacement.

But can i ask you one more thing?

I typed 0.1m/s in mesh velocity

and I tried to solve for 10 seconds.

But it didn't move 1 m, but less than that

Can you explain why?


Thanks!
I got it! It was displacement. But can i ask you one more thing? I typed 0.1m/s in mesh velocity and I tried to solve for 10 seconds. But it didn't move 1 m, but less than that Can you explain why? Thanks!

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