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Search: Posts Made By: dl6tud
Forum: OpenFOAM Running, Solving & CFD September 18, 2012, 08:13
Replies: 7
Views: 3,071
Posted By dl6tud
Thank you! When using a 0-temperature field,...

Thank you!
When using a 0-temperature field, gradient and laplace are zero, too. It is not perfect yet, but acceptable. :)
Forum: OpenFOAM Running, Solving & CFD September 17, 2012, 11:34
Replies: 7
Views: 3,071
Posted By dl6tud
Thanks for your answer, Philip! It seems,...

Thanks for your answer, Philip!

It seems, that all cells have wrong values (see picture).

You are right, the values are very small, but unfortunately too high for the problem I am working on....
Forum: OpenFOAM Running, Solving & CFD September 17, 2012, 11:00
Replies: 7
Views: 3,071
Posted By dl6tud
Only in certain places: grad(T)=

Only in certain places:

grad(T)=
Forum: OpenFOAM Running, Solving & CFD September 17, 2012, 09:43
Replies: 7
Views: 3,071
Posted By dl6tud
I tried different numerical schemes for grad and...

I tried different numerical schemes for grad and laplacian:

grad(T)
- Gauss linear: not correct
- leastSquares: ok
- fourth: ok

snGrad(T)
- corrected: ok
- uncorrected: ok
Forum: OpenFOAM Running, Solving & CFD September 14, 2012, 05:52
Replies: 7
Views: 3,071
Posted By dl6tud
Laplace, Grad, snGrad of T

I have a constant Temperature field with T=300:

I try the following:
fvc::snGrad(T) = 0
fvc::grad(T) != 0
fvc::laplacian(constant,T) != 0

Having a constant Temperture field, I assume, that...
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