OpenFOAM and fluid-structure interaction, biomedical applications

Martin_ · January 20, 2010, 05:14

Hello OpenFOAM users,

I would like to do (potentially rather complex) simulation of blood flow including fluid-structure interaction. I googled a bit, but I'd still like to hear some more answers to the following questions:

- is OpenFOAM(-1.5-dev) able to solve the solid deformation using linear/nonlinear finite element approximation? I've read in several places that OpenFOAM can use FVM for both fluid and solid, but I didn't find an example of computation using FVM for fluid and FEM for solid part

- how difficult in your opinion it would be to add/modify coupling models between fluid and solid (this is actually what I'd like to play with). Does this involve digging very deep in the code?

- what is the order of accuracy and type (cell-vertex/cell-centered?) of the finite volume method in OpenFOAM (I'll be considering mainly unstructured meshes both in 2D and 3D)

I'll be grateful for any comments.

Best regards,

Martin Vymazal

hjasak · January 21, 2010, 09:06

Why don't you speak to Gavin Tabor at Uni Exeter or Alojz Ivankovic at UC Dublin - they have done a few of those and published papers as well.

Hrv

Martin_ · January 21, 2010, 09:17

Hello Hrv,

thanks for the tip.

Best regards,

Martin Vymazal

January 20, 2010, 05:14	OpenFOAM and fluid-structure interaction, biomedical applications	#1
Martin_ New Member Martin Vymazal Join Date: Dec 2009 Posts: 16 Rep Power: 16	Hello OpenFOAM users, I would like to do (potentially rather complex) simulation of blood flow including fluid-structure interaction. I googled a bit, but I'd still like to hear some more answers to the following questions: - is OpenFOAM(-1.5-dev) able to solve the solid deformation using linear/nonlinear finite element approximation? I've read in several places that OpenFOAM can use FVM for both fluid and solid, but I didn't find an example of computation using FVM for fluid and FEM for solid part - how difficult in your opinion it would be to add/modify coupling models between fluid and solid (this is actually what I'd like to play with). Does this involve digging very deep in the code? - what is the order of accuracy and type (cell-vertex/cell-centered?) of the finite volume method in OpenFOAM (I'll be considering mainly unstructured meshes both in 2D and 3D) I'll be grateful for any comments. Best regards, Martin Vymazal

January 21, 2010, 09:06		#2
hjasak Senior Member Hrvoje Jasak Join Date: Mar 2009 Location: London, England Posts: 1,905 Rep Power: 33	Why don't you speak to Gavin Tabor at Uni Exeter or Alojz Ivankovic at UC Dublin - they have done a few of those and published papers as well. Hrv __________________ Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk

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January 21, 2010, 09:17		#3
Martin_ New Member Martin Vymazal Join Date: Dec 2009 Posts: 16 Rep Power: 16	Hello Hrv, thanks for the tip. Best regards, Martin Vymazal