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viscoelastic fluid structure interaction
Posted 07.10.2013, 15:20 GMT-4 3 Replies
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Dear All,
I have a new problem that I'd like to model it with COMSOL but I wonder if it can do it.
I'd like to model a simple fluid structure interaction system but, with a viscoelastic fluid. All of the solved models in this area consider a Newtonian fluid however, I'd like to replace it with viscoelastic fluid.
Would you please tell me is it possible to model it with my current 3.5 COMSOL? and how?
I have a new problem that I'd like to model it with COMSOL but I wonder if it can do it.
I'd like to model a simple fluid structure interaction system but, with a viscoelastic fluid. All of the solved models in this area consider a Newtonian fluid however, I'd like to replace it with viscoelastic fluid.
Would you please tell me is it possible to model it with my current 3.5 COMSOL? and how?
3 Replies Last Post 07.10.2013, 17:30 GMT-4
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Posted:
1 decade ago
Dear Mostapha,
There is a very good COMSOL example showing how to setup a fluid analysis with a viscoelastic fluid. It is Model ID 4383 titled “Flow of Oldroyd-B Viscoelastic Fluid”. It is relatively complicated because you have to setup the general form PDE that tracks the evolution of the viscous stress, but the example shows a lot of details. I don't know how much of that is possible with version 3.5.
Nagi Elabbasi
Veryst Engineering
There is a very good COMSOL example showing how to setup a fluid analysis with a viscoelastic fluid. It is Model ID 4383 titled “Flow of Oldroyd-B Viscoelastic Fluid”. It is relatively complicated because you have to setup the general form PDE that tracks the evolution of the viscous stress, but the example shows a lot of details. I don't know how much of that is possible with version 3.5.
Nagi Elabbasi
Veryst Engineering
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Posted:
1 decade ago
Dear Nagi,
Thank you for your reply. I had seen that example however, I have to add moving mesh module (ALE) to be able to analyze FSI in viscoelastic fluid. Which I did but it is not enough!
Which version is suitable for kind of problems like mine?
Thanks a lot.
Mostapha
Thank you for your reply. I had seen that example however, I have to add moving mesh module (ALE) to be able to analyze FSI in viscoelastic fluid. Which I did but it is not enough!
Which version is suitable for kind of problems like mine?
Thanks a lot.
Mostapha
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Posted:
1 decade ago
That is interesting. It should get a little more complicated with ALE but I believe it’s doable. I haven’t tried any such examples so I can’t really provide any specific insight. Regarding the version that is an easy question … the latest one!
Nagi Elabbasi
Veryst Engineering
Nagi Elabbasi
Veryst Engineering