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Old

non-uniform boundray condition - solution dynamicCode

Posted October 25, 2016 at 05:12 by kindle
Updated October 25, 2016 at 05:14 by kindle (::pow give a smile face)

Modifying the file 0/U the /incompressible/icoFoam/cavity tutorial.

FoamFile
{
version 2.0;
format ascii;
class volVectorField;
object U;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions [0 1 -1 0 0 0 0];

internalField uniform (0 0 0);

boundaryField
{
movingWall
{
type ...
New Member
Posted in Pre-processing
Views 892 Comments 0 kindle is offline Edit Tags
Old

pimpleFoam vs simpleFoam vs pisoFoam vs icoFoam?

Posted October 14, 2016 at 12:27 by kindle
Updated October 24, 2016 at 12:37 by kindle

Quite confusing sometime !

But, why is that a problem needs boundary condition for U and p and all the other possible variables?

pisoFoam has relaxation coef while icoFoam does not have this.
Quote:
UEqn.relax();

Quote:
Originally Posted by ata View Post
Hi
icoFoam is transient solver for incompressible, laminar flow of Newtonian fluids.

pimpleFoam is large time-step transient solver for incompressible, flow using the PIMPLE(merged PISO-SIMPLE) algorithm.
...
New Member
Posted in Solver
Views 1514 Comments 0 kindle is offline Edit Tags
Old

Viscoelastic Fluid Flows using OpenFOAM The solver viscoelasticFluidFoam

Posted October 14, 2016 at 12:27 by kindle

This guy use Openfoam and FENE-P !!!

Quote:
Originally Posted by mmasoudian View Post
Dear ata
I appreciate your quick answer
I compiled everything and I changed fvSolutions as you mentioned in forum but when I want to run a case (FENE-P): the error is:


mam@ubuntu:~/OpenFOAM/mam-2.0.0/RUN/tutorials/incompressible/viscoelasticFluidFoam/FENE-P$ viscoelasticFluidFoam
/*---------------------------------------------------------------------------*\
| ========= |
...
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Posted in Viscoelastic
Views 797 Comments 0 kindle is offline Edit Tags
Old

PyFoam

Posted October 12, 2016 at 12:41 by kindle
Updated October 14, 2016 at 11:03 by kindle

4.8 GUI-Tools

4.8.1 pyFoamDisplayBlockMesh.py

Graphically displays a blockMesh and helps highlights selected blocks and patches. It is not a blockMesh-editor, but it helps to find errors in the order of vertices etc (editing of the blockMesh is still done in a text editor).
This needs an installation of the VTK with Python-bindings. The ways to get this are very different on various systems. But usually you have to compile it from the sources. Sorry.
Since...
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Posted in PyFoam
Views 703 Comments 0 kindle is offline Edit Tags
Old

Cylinder Mesh

Posted October 12, 2016 at 11:43 by kindle
Updated October 14, 2016 at 11:04 by kindle

Quote:
Originally Posted by guilherme View Post
hi, how do I do a cylinder with blockmesh? Is it necessary do a quarter of a cylinder and stablish simmetry plane in the lateral faces of it or exists a mean of make a entire cylinder? My cylinder is totally wrong I think.

Could anyone posts a simple mesh to I see?
The first guy attaches cylinderMesh.m4. which is for older Openfoam, writing patches differently.

The second attaches cylinderMesh.txt which is the same as first but compatible with Openfoam...
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Posted in Pre-processing
Views 785 Comments 0 kindle is offline Edit Tags

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