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Search took 0.00 seconds. Search: Posts Made By: makaveli_lcf
Forum: OpenFOAM Pre-Processing September 21, 2012, 19:56
Replies: 65
Views: 33,432
Posted By makaveli_lcf
You are trying to compare Dirichlet and Robin...

You are trying to compare Dirichlet and Robin boundary conditions. First one is fixing your solution to some values, the second contains gradients and nonlinearity, so can couse oscilations around...
Forum: OpenFOAM Pre-Processing September 21, 2012, 19:44
Replies: 65
Views: 33,432
Posted By makaveli_lcf
No I mean previus ITERATION: Step #1: you...

No I mean previus ITERATION:

Step #1: you take T from old time step (at least OpenFOAM does it for you in any case) and use them to solve dh(@_new_time_step)/dt=k*laplacian(T(@_old_time_step))
...
Forum: OpenFOAM Pre-Processing September 21, 2012, 19:13
Replies: 65
Views: 33,432
Posted By makaveli_lcf
Ok then you should put a coupling loop (like...

Ok then you should put a coupling loop (like pimple e.g.) around it, because temperature values which you use in the energy equation for the enthalpy are from the previous iteration and do not meat...
Forum: OpenFOAM Pre-Processing September 21, 2012, 18:31
Replies: 65
Views: 33,432
Posted By makaveli_lcf
Do you make correction loops for each time step?

Do you make correction loops for each time step?
Forum: OpenFOAM Pre-Processing September 20, 2012, 18:25
Replies: 65
Views: 33,432
Posted By makaveli_lcf
You can find the description here, just read more...

You can find the description here, just read more careful
Forum: OpenFOAM Pre-Processing September 20, 2012, 18:05
Replies: 65
Views: 33,432
Posted By makaveli_lcf
For convective BC you have to write your own...

For convective BC you have to write your own implementation based on mixed type
Forum: OpenFOAM Pre-Processing May 29, 2011, 10:48
Replies: 65
Views: 33,432
Posted By makaveli_lcf
Hi Fabian! Let's clarify the BC which are...

Hi Fabian!

Let's clarify the BC which are discussed here:
you have your heat transfer coefficient (HTC) defined for the heat exchange between solid and liquid regions. It is already includes wall...
Forum: OpenFOAM Pre-Processing May 29, 2011, 04:36
Replies: 65
Views: 33,432
Posted By makaveli_lcf
Here this case is for zero-thickness walls. You...

Here this case is for zero-thickness walls. You just balance your heat fluxes from fluid side and wall side.
Forum: OpenFOAM Pre-Processing May 12, 2011, 11:37
Replies: 65
Views: 33,432
Posted By makaveli_lcf
To implement 2nd order on the boundary you need...

To implement 2nd order on the boundary you need bigger stencil to be used. To get this you need a fictitious cell from "outside", while for the unstructured grid it is not possible to understand...
Showing results 1 to 9 of 9

 
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