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Meshing of Fluid structure interaction in a blood vessel
Posted Jun 17, 2013, 1:05 a.m. EDT Mesh Version 4.2a 2 Replies
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hi all,
I am doing a FSI steady state analysis of blood vessel, the fluid domain surrounds by 4 layers (solid domains). the thickness of fluid domain is in millimeters but solid domains have diameters in micro meters. I tried different mesh like free triangular, mapped, quad and edge type but the solution gives error of negative square power error . But when i apply free triangular , there are too much elements are created that my computer hangs up.
Can anyone can help me , i have attached file of 4.2a version
regards
Ali
I am doing a FSI steady state analysis of blood vessel, the fluid domain surrounds by 4 layers (solid domains). the thickness of fluid domain is in millimeters but solid domains have diameters in micro meters. I tried different mesh like free triangular, mapped, quad and edge type but the solution gives error of negative square power error . But when i apply free triangular , there are too much elements are created that my computer hangs up.
Can anyone can help me , i have attached file of 4.2a version
regards
Ali
Attachments:
2 Replies Last Post Jun 17, 2013, 11:43 p.m. EDT
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Posted:
1 decade ago
Hi Ali,
I've done a similar problem in 3D with simpler geometry (straight tubes). My tube wall only consists of one layer and its thickness is much smaller than the the tube radius. Therefore, I could take advantage of the shell element. However, this approach doesn't work for you as you have multiple layers.
To mesh thin layers, you can try mesh a cross-section of your vessel and then sweep through the length.
Thanks,
Shuping
I've done a similar problem in 3D with simpler geometry (straight tubes). My tube wall only consists of one layer and its thickness is much smaller than the the tube radius. Therefore, I could take advantage of the shell element. However, this approach doesn't work for you as you have multiple layers.
To mesh thin layers, you can try mesh a cross-section of your vessel and then sweep through the length.
Thanks,
Shuping
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Posted:
1 decade ago
Shuping,
Thank u for ur help. I have tried by meshing cross section of layers with edge and then using free triangular for remaining (length ) of walls. but unfortunately it didn't work.
I hope for some other help
regards
Ali
Thank u for ur help. I have tried by meshing cross section of layers with edge and then using free triangular for remaining (length ) of walls. but unfortunately it didn't work.
I hope for some other help
regards
Ali