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Forum: OpenFOAM Running, Solving & CFD September 22, 2014, 13:27
Replies: 21
Views: 7,431
Posted By farazarbabi
Hi Mojtaba, I reran the case for different...

Hi Mojtaba,

I reran the case for different maxCo (and maxalphaCo) numbers, for writeIntervals equal to 0.1:

Co= 0.5; Execution Time= 106 s
Co= 0.3; Execution Time= 190 s
Co= 0.1; Execution...
Forum: OpenFOAM Running, Solving & CFD September 20, 2014, 16:46
Replies: 21
Views: 7,431
Posted By farazarbabi
I see your point, but I think (according to...

I see your point, but I think (according to OpenFOAM) as long as the Courant number is below 1, the solution should be correct. Neither writeInterval equal to 0.1 nor 0.01 causes the Courant number...
Forum: OpenFOAM Running, Solving & CFD September 20, 2014, 14:27
Replies: 21
Views: 7,431
Posted By farazarbabi
I just noticed that writeInterval is a main...

I just noticed that writeInterval is a main reason for contradiction between our results. Its value has a huge effect on the solution. using deltaT=1e-04, and writeInterval=0.1 gives me wrong...
Forum: OpenFOAM Running, Solving & CFD September 19, 2014, 18:12
Replies: 21
Views: 7,431
Posted By farazarbabi
Thank you so much Mojtaba, it helped so much. I...

Thank you so much Mojtaba, it helped so much.
I realized that I had set the top-wall pressure B.C. to zeroGradient, which should be fixedValue.
Can you please explain why we must use fixedValue...
Forum: OpenFOAM Running, Solving & CFD September 15, 2014, 13:24
Replies: 21
Views: 7,431
Posted By farazarbabi
Correction: g=-0.98, as stated in the...

Correction:
g=-0.98, as stated in the mentioned paper.
Forum: OpenFOAM Running, Solving & CFD September 15, 2014, 13:07
Replies: 21
Views: 7,431
Posted By farazarbabi
In setFields: defaultFieldValues ( ...

In setFields:

defaultFieldValues
(
volScalarFieldValue alpha.water 1
);

regions
(
cylinderToCell
Forum: OpenFOAM Running, Solving & CFD September 15, 2014, 12:05
Replies: 21
Views: 7,431
Posted By farazarbabi
Hi Mojtaba and thank you for your response, ...

Hi Mojtaba and thank you for your response,

These are the parameters that I used:

zeroGradient pressure B.C. for for the walls. slip B.C. for the left and right walls, no-slip for the lower and...
Forum: OpenFOAM Running, Solving & CFD September 11, 2014, 18:22
Replies: 21
Views: 7,431
Posted By farazarbabi
Rising Bubble Test Case Using interFoam: Unrealistic Results?!

Hi guys,

I am trying to follow the following paper and model a simple single bubble rising in a tank filled with water:

Hysing et al., "Quantitative benchmark computations of two-dimensional...
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