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Forum: OpenFOAM Running, Solving & CFD June 17, 2021, 02:56
Replies: 20
Views: 1,508
Posted By DevilX
This is really strange to be honest. Then there...

This is really strange to be honest. Then there is a problem with BCīs oder Solver for sure (guessing gives the BCīs a bigger impact).
Forum: OpenFOAM Running, Solving & CFD June 16, 2021, 01:50
Replies: 20
Views: 1,508
Posted By DevilX
The left side are the iterations, while the right...

The left side are the iterations, while the right ones are the values that you want by the formula M dot (massflow) = Velocity * Area of Inlet Patch * Density. So in example below, for the first 4...
Forum: OpenFOAM Running, Solving & CFD June 15, 2021, 05:09
Replies: 20
Views: 1,508
Posted By DevilX
Well then itīs really strange. So the Mesh is...

Well then itīs really strange. So the Mesh is alright, okay. At least something. Have you adapted the table accordingly to your values? You can also try to let the first 50 Iterations the Value...
Forum: OpenFOAM Running, Solving & CFD June 15, 2021, 04:08
Replies: 20
Views: 1,508
Posted By DevilX
Okay, as far as may limited experience goes,...

Okay, as far as may limited experience goes, negative initial temps often come from a bad mesh - try checkMesh with additional -allGeometry and -allTopology and look what it spits out.
Next thing...
Forum: OpenFOAM Running, Solving & CFD June 15, 2021, 01:47
Replies: 20
Views: 1,508
Posted By DevilX
Well try to reduce your case to the simplest way...

Well try to reduce your case to the simplest way possible, disable turbulence, set mu to constant instead of sutherland and delete this in your Fv solution file:

nNonOrthogonalCorrectors 0;
...
Forum: OpenFOAM Running, Solving & CFD June 11, 2021, 06:03
Replies: 20
Views: 1,508
Posted By DevilX
Hey Lewis, Well the BCīs are correct in...

Hey Lewis,

Well the BCīs are correct in terms of physic as far as my small knowledge allow the verification.
But i would try the following in Fvschemes:

solvers
{
p
{
...
Forum: OpenFOAM Running, Solving & CFD June 10, 2021, 03:12
Replies: 20
Views: 1,508
Posted By DevilX
Hey Lewis, yeah, true, if this is needed,...

Hey Lewis,

yeah, true, if this is needed, then SimpleFoam isn't the one to go. Can you write your BC's, fvSolution, thermoProperties and fvSchemes File here? At Dropbox, i can't have a look at...
Forum: OpenFOAM Running, Solving & CFD June 9, 2021, 02:24
Replies: 20
Views: 1,508
Posted By DevilX
Hey Lewis, i am not an expert of myself in OF,...

Hey Lewis,
i am not an expert of myself in OF, but i think that youīve 2 main problems. First, rhoSimpleFoam is a special solver which is kind of unstable. I canīt open your case (Laptop...
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