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Forum: OpenFOAM Programming & Development

February 19, 2021, 07:23

Replies: 9

Simplifying equation help

Views: 765

Posted By Tobermory

I am probably missing something here, but let me...

I am probably missing something here, but let me try reiterating my above point. We start with the charge conservation equation:

\frac{\partial \rho_E}{\partial t}+\nabla \cdot (\rho_E \vec{u})...

Forum: OpenFOAM Programming & Development

February 19, 2021, 04:54

Replies: 9

Simplifying equation help

Views: 765

Posted By Tobermory

By all means, I can take a look at your code,...

By all means, I can take a look at your code, although it has been 30yrs or so since I did my course on electromagnetism!

I would suggest checking your logic first, though. Note that your second...

Forum: OpenFOAM Programming & Development

February 19, 2021, 04:22

Replies: 9

Simplifying equation help

Views: 765

Posted By Tobermory

Both look fine to me - did they compile and run...

Both look fine to me - did they compile and run okay?

Forum: OpenFOAM Programming & Development

February 19, 2021, 04:12

Replies: 9

Simplifying equation help

Views: 765

Posted By Tobermory

Aaah - that makes sense now, and yes your coding...

Aaah - that makes sense now, and yes your coding looks good to me.

In case you are interested, the difference between fvm and fvc is subtle: fvm builds the matrix coefficients for an implicit...

Forum: OpenFOAM Programming & Development

February 18, 2021, 16:43

Replies: 9

Simplifying equation help

Views: 765

Posted By Tobermory

Umm ... I am struggling to relate your coding to...

Umm ... I am struggling to relate your coding to your equations. Just for clarity:
tmp<fvScalarMatrix> ECDEqn
(
fvm::ddt(rhoE)
- fvc::laplacian(sgm, Ue)
...

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