Ivar KJELBERG
COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted:
1 decade ago
Apr 14, 2013, 5:46 a.m. EDT
Hi
check your doc and the "wall" options, there should be a "moving wall option in there ..
--
Good luck
Ivar
Hi
check your doc and the "wall" options, there should be a "moving wall option in there ..
--
Good luck
Ivar
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Posted:
1 decade ago
Apr 14, 2013, 7:11 a.m. EDT
hey,
Actually I needed the thickness of the film between the plates too as an output...so I was using the "Thin film Flow interface" to model the flow. So, I have 2 doubts...
Firstly,
Does one require a moving mesh interface to be coupled with Thin film for setting up the study??
Secondly,
How does one specify the velocity of the plates moving towards each other in the displacement field of the Thin film flow interface? I tried displacement =velocity * time but it didn;t quite work out for me....Could you suggest something in this regard?
Thanks :)
hey,
Actually I needed the thickness of the film between the plates too as an output...so I was using the "Thin film Flow interface" to model the flow. So, I have 2 doubts...
Firstly,
Does one require a moving mesh interface to be coupled with Thin film for setting up the study??
Secondly,
How does one specify the velocity of the plates moving towards each other in the displacement field of the Thin film flow interface? I tried displacement =velocity * time but it didn;t quite work out for me....Could you suggest something in this regard?
Thanks :)
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Posted:
1 decade ago
Apr 16, 2013, 8:02 a.m. EDT
hey,
I tried building the model with the moving walls option. However, the pressure and velocity profiles are not changing with time in a time dependent study. Could you suggest if something is wrong with the model?
Thanks
Sarneet
hey,
I tried building the model with the moving walls option. However, the pressure and velocity profiles are not changing with time in a time dependent study. Could you suggest if something is wrong with the model?
Thanks
Sarneet
Mikael Noerregaard Nielsen
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Posted:
1 decade ago
Apr 16, 2013, 1:56 p.m. EDT
Hey Sarneet
First of all, I am no expert on the subject but its very hard giving you advice without your model:-) The reason why I mention this is because it could be something in your boundary conditions or perhaps even inlet or outlet conditions.
Best of luck
Regards Mikael
Hey Sarneet
First of all, I am no expert on the subject but its very hard giving you advice without your model:-) The reason why I mention this is because it could be something in your boundary conditions or perhaps even inlet or outlet conditions.
Best of luck
Regards Mikael