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[blockMesh] Meshing a bent coronary (like pipe) with stenosis (narrowing) |
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May 10, 2011, 07:09 |
Meshing a bent coronary (like pipe) with stenosis (narrowing)
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#1 |
Member
Martin
Join Date: Aug 2010
Location: Germany
Posts: 55
Rep Power: 15 |
Hi there
i am trying to simulate the flow in a coronary with narrowing (75% area stenosis)... Therefor i would like to create a mesh with blockMesh. I already have some results, but they are not satisfying The problem is, to get the curved and narrowed part generated without any inconstancies. I defined the points, for the middle of the bent part (45 degrees) and created arc - edges from the ending of the unbent cylinders to the middle plane, with calculated points for the arcs. The arc - points are points of a circle, lying in an angle of 22.5 degrees to the ending cylinder and the middle circle. As you could see on the pictures, one will get inconstancies with this method I hope this was not to complicating - maybe the pictures will show what i mean!!! Now the most important question: does anyone have an idea, how to solve this problem? Regards, Martin |
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May 10, 2011, 07:23 |
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#2 |
Senior Member
Martin
Join Date: Oct 2009
Location: Aachen, Germany
Posts: 255
Rep Power: 21 |
Hi Martin,
you can try to use splines instead of arcs. The bend will be modeled with 5 hex blocks instead of 10. Or have a try with discretizer... Martin |
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May 10, 2011, 07:33 |
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#3 |
Member
Martin
Join Date: Aug 2010
Location: Germany
Posts: 55
Rep Power: 15 |
dear Martin (nice Name
if i already tried to mesh it with only 5 blocks - the result is to be seen below... I think i will need the middle circle, for getting the guaranty, that it is a circle cross section at each point of the line... |
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May 10, 2011, 11:21 |
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#4 |
Member
Martin
Join Date: Aug 2010
Location: Germany
Posts: 55
Rep Power: 15 |
I adapted the arc - interpolation coordinates a little bit - below you will see the result!!!
One problem is left: the inconstancies at the end of the curved part... Does anyone have an idea how to solve this? I will try a little bit with splineLines as edges - maybe results will get better..!? |
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