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-   -   fvsolutions relaxation factor (https://www.cfd-online.com/Forums/openfoam-solving/142754-fvsolutions-relaxation-factor.html)

alyucel October 8, 2014 16:22
fvsolutions relaxation factor
 
hi,
while I was searching tutorials I found something
in some fv solutions

Code:
relaxationFactors
{
    fields
    {
        p              0.3;
    }
    equations
    {
        U              0.7;
        k              0.7;
        omega          0.7;
    }
or

Code:
relaxationFactors
{
    p              0.3;
    U              0.7;
    k              0.7;
    epsilon        0.7;
    R              0.7;
    nuTilda        0.7;
}
what is the differ p in field or not
also some one
Code:
relaxationFactors
{
    fields
    {
    }
    equations
    {
        "U.*"          1;
        "k.*"          1;
        "epsilon.*"    1;
    }
}
what is "U.*"

alyucel October 8, 2014 16:38
also
in simpleFoam>>pipeCyclic tutorial
Code:
PIMPLE
{
    nOuterCorrectors 4;
    nCorrectors    1;
    nNonOrthogonalCorrectors 0;
    pRefCell        0;
    pRefValue      0;
}

SIMPLE
{
    nNonOrthogonalCorrectors 0;
    residualControl
    {
        p              1e-2;
        U              1e-3;
        "(k|epsilon)"  1e-3;
    }
}
is it normal simple and pimğle in same fvsolution

RodriguezFatz October 9, 2014 03:30
Hey alyucel, I am not sure about your first question. I am wondering the same thing and never found a good explanation for the syntax.
But to your second post: fvSolution contains info for the solver. The solver "simple" will use all information after the keyword "SIMPLE { ... }". It will just not consider the stuff after "PIMPLE { ...}". So if you have both in one file, you will be able to start your case with both solvers pimple and simple.


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