Wrong mass flux for solid into fluid domain in icoFsiElasticNonLinUlSolidFoam solver

EmadTandis · September 23, 2019, 00:34

Hello all,

I'm working on the tutorial problem for icoFsi solver, named "Hron Turek FSI". The icoFsiElasticNonLinUlSolidFoam gives good results for the movement of flag end. The problem is when you more delve into the solution files such as phi in each time step, you can see you have a non-zero mass flux for the moving wall of the plate into the fluid domain. However, the phi, which is relative mass flux, must be zero at wall around the fluid domain, even for moving wall.
The question is: Is it normal to have a mass flux from moving wall into the domain of the fluid?

Any comment is appreciated.

HPE · September 23, 2019, 10:43

How to give enough info to get help

How to create a Minimal, Reproducible Example

September 23, 2019, 00:34	Wrong mass flux for solid into fluid domain in icoFsiElasticNonLinUlSolidFoam solver	#1
EmadTandis Member Emad Tandis Join Date: Sep 2010 Posts: 77 Rep Power: 15	Hello all, I'm working on the tutorial problem for icoFsi solver, named "Hron Turek FSI". The icoFsiElasticNonLinUlSolidFoam gives good results for the movement of flag end. The problem is when you more delve into the solution files such as phi in each time step, you can see you have a non-zero mass flux for the moving wall of the plate into the fluid domain. However, the phi, which is relative mass flux, must be zero at wall around the fluid domain, even for moving wall. The question is: Is it normal to have a mass flux from moving wall into the domain of the fluid? Any comment is appreciated.

September 23, 2019, 10:43		#2
HPE Senior Member Herpes Free Engineer Join Date: Sep 2019 Location: The Home Under The Ground with the Lost Boys Posts: 932 Rep Power: 12	How to give enough info to get help How to create a Minimal, Reproducible Example __________________ 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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