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Search took 0.02 seconds. Search: Posts Made By: Artur
Forum: OpenFOAM Running, Solving & CFD February 28, 2014, 11:27
Replies: 37
Views: 7,879
Posted By Artur
OK, about your case setup: 1. I don't think...

OK, about your case setup:

1. I don't think you need to use the following with zeroGradient on alpha1 outlet:
inletValue $internalField; but that probably won't change anything since the...
Forum: OpenFOAM Running, Solving & CFD February 28, 2014, 04:11
Replies: 37
Views: 7,879
Posted By Artur
Just change the control parameters at the top of...

Just change the control parameters at the top of the file to something like:
# ===========
# CHANGE THESE
p = -1001.
pSat_ = -1000
# ===========
And you will see NaN square root terms (as I...
Forum: OpenFOAM Running, Solving & CFD February 27, 2014, 06:35
Replies: 37
Views: 7,879
Posted By Artur
Yes, this is exactly as you say. But shipman...

Yes, this is exactly as you say. But shipman mentioned that the FP error occurred when he set pSat to a negative value in the dictionary specifically. Hence this is the only place where the equations...
Forum: OpenFOAM Running, Solving & CFD February 27, 2014, 04:36
Replies: 37
Views: 7,879
Posted By Artur
Hi, I have had the same problem as you with...

Hi,

I have had the same problem as you with the floating point error using Schnerr-Sauer model (Kunz was fine). I traced it down to the following line in SchnerrSauer.C:

/( rho*sqrt( mag(p -...
Forum: OpenFOAM Running, Solving & CFD February 26, 2014, 08:11
Replies: 37
Views: 7,879
Posted By Artur
Hi, going bottom-to-top on your list: 1....

Hi, going bottom-to-top on your list:

1. pressure in interPhaseChangeFoam is defined in pEqn as:

p_rgh = p - rho*gh;

And has the units of [1 -1 -2 0 0] or [kg m-1 s-2] or Pa in other words...
Forum: OpenFOAM Running, Solving & CFD January 23, 2014, 04:47
Replies: 37
Views: 7,879
Posted By Artur
Well, mesh check errors are generally detrimental...

Well, mesh check errors are generally detrimental when it comes to the solution quality, especially when problems occur early on in the continuity equation (which is what I think is going on in this...
Forum: OpenFOAM Running, Solving & CFD January 23, 2014, 04:30
Replies: 37
Views: 7,879
Posted By Artur
Normally when I get my simulations blowing up on...

Normally when I get my simulations blowing up on continuity with interPhaseChangeFoam it's because of the alpha field source terms. It seems that for your case there is no cavitation at all (min...
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