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Forum: OpenFOAM Programming & Development

December 12, 2014, 00:39

Replies: 12

How to add implicit terms to the momentum equation?

Views: 2,316

Posted By Tushar@cfd

Before going for the solver correction, I would...

Before going for the solver correction, I would advice you to first try with these settings:

For fvSchemes files:

gradSchemes
{
default none;
grad(p) Gauss linear;
...

Forum: OpenFOAM Programming & Development

December 9, 2014, 23:01

Replies: 12

How to add implicit terms to the momentum equation?

Views: 2,316

Posted By Tushar@cfd

Hmmm interesting, any other idea? anyone? - ...

Hmmm interesting, any other idea? anyone?

-
Best Regards!

Forum: OpenFOAM Programming & Development

December 8, 2014, 22:58

Replies: 12

How to add implicit terms to the momentum equation?

Views: 2,316

Posted By Tushar@cfd

You are correct, OpenFOAM will show error. ...

You are correct, OpenFOAM will show error.

Try the following formulation, I hope this will work.

fvm::Sp(rho, (U & fvc::grad(U1)));

Or,

If you wish you can upload your case files...

Forum: OpenFOAM Programming & Development

December 8, 2014, 00:10

Replies: 12

How to add implicit terms to the momentum equation?

Views: 2,316

Posted By Tushar@cfd

Dear MaryBau, First of all, your...

Dear MaryBau,

First of all, your discretized equations is in vector form. And the term for (c) explicit, is a vector. You can add this term implicitly by considering it as a source like this:
...

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