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February 9, 2020, 12:25 |
fluid orce to solid patch icofsifoam
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#1 |
New Member
xena
Join Date: Mar 2019
Posts: 13
Rep Power: 7 |
Hello,
My question is about the fluid force applied on the solid patch in icodymfoam, what we find in setMotion.H, is juste pressure, !! Is the correct force implemented elsewhere ? regards |
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February 9, 2020, 14:03 |
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#2 |
Senior Member
Herpes Free Engineer
Join Date: Sep 2019
Location: The Home Under The Ground with the Lost Boys
Posts: 932
Rep Power: 12 |
The Q is a bit broad, isn't it?
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February 10, 2020, 02:47 |
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#3 |
New Member
xena
Join Date: Mar 2019
Posts: 13
Rep Power: 7 |
ok sorry, i will explain it better.
at the fluid-structure interface, we have as BC the equality of constraints (file attached). But when I checked in setpressure.H of icodymfoam it looks like this : { scalarField solidPatchPressure = interpolatorFluidSolid.faceInterpolate ( p.boundaryField()[fluidPatchID] ); solidPatchPressure *= rho; tForce.pressure() = solidPatchPressure; vector totalPressureForce = sum ( p.boundaryField()[fluidPatchID]* mesh.Sf().boundaryField()[fluidPatchID] ); } So there isn't the part of the force due to the velocity and the viscosity. Am I rignt, or is it done elswhere in the code. Regards |
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February 18, 2020, 16:37 |
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#4 |
Senior Member
Herpes Free Engineer
Join Date: Sep 2019
Location: The Home Under The Ground with the Lost Boys
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Oh yeah, I think so.
I think what you are looking for is an active research topic, thats why it is not available thereat or somewhere else I think.
__________________
The OpenFOAM community is the biggest contributor to OpenFOAM: User guide/Wiki-1/Wiki-2/Code guide/Code Wiki/Journal Nilsson/Guerrero/Holzinger/Holzmann/Nagy/Santos/Nozaki/Jasak/Primer Governance Bugs/Features: OpenFOAM (ESI-OpenCFD-Trademark) Bugs/Features: FOAM-Extend (Wikki-FSB) Bugs: OpenFOAM.org How to create a MWE New: Forkable OpenFOAM mirror |
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February 24, 2020, 08:54 |
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#5 |
Super Moderator
Philip Cardiff
Join Date: Mar 2009
Location: Dublin, Ireland
Posts: 1,089
Rep Power: 34 |
Hi,
As noted previously, the icoFsiFoam solver only passes pressure to the solid and ignores viscous stresses e.g. see other threads: Fluid Structure Interaction using icoFsiFoam Problems You can try later FSI solvers that include both e.g. extend-bazaar and solids4foam. Philip |
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February 24, 2020, 09:52 |
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#6 | |
New Member
xena
Join Date: Mar 2019
Posts: 13
Rep Power: 7 |
Quote:
Thanks, Is it possible to add it to the current code? I made some changes, so I want to continue using icofsifoam for the time being! Regards |
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February 24, 2020, 14:10 |
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#7 |
Super Moderator
Philip Cardiff
Join Date: Mar 2009
Location: Dublin, Ireland
Posts: 1,089
Rep Power: 34 |
Hi xena,
You can find steps on the thread in my previous post. Philip |
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