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New Model of Turbulence with Porosity Source Term

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Old   July 17, 2017, 05:25
Default New Model of Turbulence with Porosity Source Term
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Chus Mat
Join Date: Feb 2017
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Hello everyone,

I am trying to include a source term in the k-epsilon model. The source term is related with the porosity applying the Darcy-Forchheimer Law.

I have created a Field called Darcy which my program will read. With that field I calculate other two terms.

There are not compilation errors, however when I launch porousSimpleFoam the following error occurs:

Quote:
new cannot satisfy memory request.
This does not necessarily mean you have run out of virtual memory.
It could be due to a stack violation caused by e.g. bad use of pointers or an out of date shared library
Aborted
Despite I have not created any new pointer to the functions the error still appearing.

Somebody could help me with this? I will appreciate any help.

Here is how I define the functions in my code:

Quote:
tmp<volScalarField> kEpsilonFurow :: permeability()//New
{
volScalarField permeability_("permeability", porosity()/Darcy_);

return permeability_;
}

tmp<volScalarField> kEpsilonFurow :: porosity()//New
{




volScalarField porosity_("porosity", sqrt(1/(0.00450799*Darcy_ +1 )));

return porosity_;

}
tmp <volScalarField> kEpsilonFurow ::Gk()//New
{

volScalarField Gk("Gk", Ck_*k_*porosity()/sqrt(permeability())* sqrt(U_ & U_) );
volScalarField Zero("Zero", 0.0*k_);
if (Darcy_ > Zero)
return Gk;
else
return Zero;


}
And in the k equation:

Quote:
tmp<fvScalarMatrix> kEqn
(
fvm::ddt(k_)
+ fvm::div(phi_, k_)
- fvm::laplacian(DkEff(), k_)
==
G + Gk()

- fvm::Sp(epsilon_/k_, k_)
);
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Old   February 11, 2021, 13:25
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Agustín Villa
Join Date: Apr 2013
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Hi,


I know it's been a while, but did you find an answer to this issue? I'm facing a similar problem. I have a function which returns a tmp field, but if I create the field inside the function I get also this error message when running.
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code, compilation, porosity, poroussimplefoam, turbuelence model

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