[vitorspadeto]

My goal is to simulate a flow of blood in a vein in the human body. Is it possible I can simulate this flow in a vein that undergoes elastic deformation as the pulse pressure of the blood (i.e., with a vein of Elasticity module)? anyone know at least some keywords to search this?


thank you!

[vitorspadeto]

consideration: I'm a beginner, but I like challenges.

[Annier]

in openfoam, almost every type of simulation can be done.
if any software is okay for you, you can once have a look in elmer software. There is a tutorial (please download pdf tutorials from elmer documentation) on blood ejection from a ventricle into aorta.
yours
anil kunwar

[vitorspadeto]

Hello .. I want to simulate a flow of blood in a vein. The vein is rigid (the mesh is attached) with one input and one output. Solvers which I could use to simulate this flow (non-Newtonian)? What should be the best?


Thank you!

[vitorspadeto]

My goal is simulate with Openfoam... Which solvers do you recomend for it?

Thanks for attention

[vitorspadeto]

the mesh..

[vitorspadeto]

someone can help me? thanks!

[Tushar@cfd]

OpenFOAM has "nonNewtonianIcoFoam" which solves Non-Newtonian fluid flows. You can try that for your case.

Best Luck!

[Danath]

Hello ! how can i help you

I simulate non newtonian (blood) flow with nonnewtonianIcoFoam, bird careau model and every thing seems to be ok .

Originally Posted by vitorspadeto

someone can help me? thanks!

[mep20108@tezu.ac.in]

Hi,

I attempted to simulate blood flow through a 2D channel using nonNewtonianIcoFoam with a Bird-Carreau model; however, I was not successful. Could anyone assist me?

the terminal displays the following message


Create time

Create mesh, no clear-out for time = 0


PISO: Operating solver in PISO mode

Reading field p

Reading field U

Reading/calculating face flux field phi

Selecting incompressible transport model BirdCarreau


--> FOAM FATAL IO ERROR: (openfoam-2406)
Unable to set reference cell for field p
Please supply either pRefCell or pRefPoint


file: system/fvSolution/PISO at line 44 to 45.

From bool Foam::setRefCell(const volScalarField&, const volScalarField&, const dictionary&, label&, scalar&, bool)
in file cfdTools/general/findRefCell/findRefCell.C at line 100.

FOAM exiting

[Yann]

Hello,

--> FOAM FATAL IO ERROR: (openfoam-2406)
Unable to set reference cell for field p
Please supply either pRefCell or pRefPoint

This error usually indicates there is no pressure defined anywhere in your boundary conditions.

If you have an open domain (aka a flow entering and exiting the domain) you should probably have a boundary condition where the pressure value is fixed (typically at the outlet). So you should probably check your boundary conditions setup.

If you have a closed domain, you might end up with no pressure defined anywhere. In this case you should provide a pRefCell/pRefPoint (the place where you want to set the pressure value) and a pRefValue (the actual pressure value) in the PISO dictionary in system/fvSolution.

Regards,
Yann