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shaswat September 1, 2013 12:58

enlargement of an artery
 
Hi all
currently I am doing enlargement of coronary artery due to porosity of an artery wall .The flow is pulsate in nature.I want to clarify the following. Is this two way FSI or one way FSI ?

or can we solve it this case in the CFX itself.
Thank you

ghorrocks September 1, 2013 18:33

The answer is self evident - if the flow affects the deformation but the deformation does not affect the flow it is one way. If the flow affects the deformation and the deformation affects the flow then it is two way.

I would think in your case it is almost certainly 2 way.

shaswat September 1, 2013 19:46

Quote:

Originally Posted by ghorrocks (Post 449257)
The answer is self evident - if the flow affects the deformation but the deformation does not affect the flow it is one way. If the flow affects the deformation and the deformation affects the flow then it is two way.

I would think in your case it is almost certainly 2 way.

Yes. It is two way . How to introduce porosity and permeability on the solid wall.

Thank you so much.

ghorrocks September 1, 2013 21:08

Are you sure the porosity/permeability is coupled to the fluid flow and motion? If it is not coupled then there is no point developing a simulation to do the coupling - and this will be far easier. Only model coupling on physics where there is, in fact, coupling.

shaswat September 2, 2013 01:01

Quote:

Originally Posted by ghorrocks (Post 449266)
Are you sure the porosity/permeability is coupled to the fluid flow and motion? If it is not coupled then there is no point developing a simulation to do the coupling - and this will be far easier. Only model coupling on physics where there is, in fact, coupling.

The inflammation of artery takes place if the porosity increases.We would like to model this Please give an idea how to start.

Thank you

ghorrocks September 2, 2013 07:53

You have to describe mathematically how all these couplings work before you can consider implementation.

So how is inflammation linked to porosity? What is the porosity a function of? You need to express the answers to these questions as mathematical functions.


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