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Can laplacianFoam solve transient heat conduction equation? |
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#1 |
Senior Member
Mandeep Shetty
Join Date: Apr 2016
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It is my understanding that the laplacianFoam solver is used to solve the Laplace equation that arises during some modeling. But Laplace equation doesn't have a transient term or source term. So how can the laplacianFoam solve the transinet heat conduction equation? Shouldn't it be named 'diffusionFoam'?
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#2 |
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Herpes Free Engineer
Join Date: Sep 2019
Location: The Home Under The Ground with the Lost Boys
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I would create a feature request issue in GitLab.
Having said that, usually, once a name for a functionality is released, it stucks even though more suitable alternatives emerge in the course of time, because of a virtual must to ensure the backward compatibility. Workflows of users should not be broken unless becomes a must. If there would be very few users for OF, it would be very easy to make such changes. OF has a large habitat nevertheless, so any change will disturb the users and developers. So why bother? Living with it is wise for such matters.
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#3 |
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Tobias Holzmann
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Dear all,
I cannot agree about the statement that the laplacianFoam does not include the time derivative. So if you check the code we certainly see: Code:
fvScalarMatrix TEqn ( fvm::ddt(T) - fvm::laplacian(DT, T) == fvOptions(T) );
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Keep foaming, Tobias Holzmann |
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#4 | |
Senior Member
Mandeep Shetty
Join Date: Apr 2016
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Quote:
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#5 |
Senior Member
Herpes Free Engineer
Join Date: Sep 2019
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Would you please make a feature/documentation request in GitLab, if possible, then by referring this CFD-Online thread: GitLab-Issuer.
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The OpenFOAM community is the biggest contributor to OpenFOAM: User guide/Wiki-1/Wiki-2/Code guide/Code Wiki/Journal Nilsson/Guerrero/Holzinger/Holzmann/Nagy/Santos/Nozaki/Jasak/Primer Governance Bugs/Features: OpenFOAM (ESI-OpenCFD-Trademark) Bugs/Features: FOAM-Extend (Wikki-FSB) Bugs: OpenFOAM.org How to create a MWE New: Forkable OpenFOAM mirror Last edited by HPE; February 18, 2020 at 16:52. |
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#6 |
Super Moderator
Tobias Holzmann
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Ah got it. Sorry.
So actually the laplacianFoam should not include the time derivative. I am not sure but I had the feeling that it was once without the time derivative. Nevertheless... I got your point ![]() If I am still not on the right way, please just write down the equation ![]() Tobi
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Tags |
heat conduction, laplace equation, laplacianfoam |
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