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Search: Posts Made By: rcastilla
Forum: OpenFOAM Bugs September 2, 2010, 09:45
Replies: 24
Views: 13,044
Posted By rcastilla
Hi, Henry, I have run the simulation....

Hi, Henry,

I have run the simulation. Analytical calculations gives a result of average alpha = 0.5 (almost exactly). But in the tutorial the column rise up to less than 0.47. If interface...
Forum: OpenFOAM Bugs September 1, 2010, 07:06
Replies: 24
Views: 13,044
Posted By rcastilla
Henry, could you at least give some brief...

Henry,

could you at least give some brief description of your test cases?

In my case there are 2D simulations of two vertical parallel plates, with a gap of 3x10^-4 m. Sigma is 0.072 N/m and...
Forum: OpenFOAM Bugs August 11, 2010, 07:35
Replies: 24
Views: 13,044
Posted By rcastilla
Henry, I think I was too optimistic with the...

Henry,

I think I was too optimistic with the word "solved" in the thread's title. It looks like this problem is far from being solved.

I tried your solution, with the "limit none" keyword in...
Forum: OpenFOAM Bugs June 29, 2010, 19:07
Replies: 24
Views: 13,044
Posted By rcastilla
It doesn't work. The dynamics is not correct. The...

It doesn't work. The dynamics is not correct. The water column should rise, but it decreases. I have checked the value of snGradAlphaS in the boundaries and it is non-null. I cannot realize why it is...
Forum: OpenFOAM Bugs June 29, 2010, 08:52
Replies: 24
Views: 13,044
Posted By rcastilla
A correcting factor for snGrad(alpha1) doesn't...

A correcting factor for snGrad(alpha1) doesn't work, since, in the boundary, snGrad(alpha1) is identicaly null.

I am testing the following formulation:

in alphaEqnSubCycle.H, just after the...
Forum: OpenFOAM Bugs June 28, 2010, 12:12
Replies: 24
Views: 13,044
Posted By rcastilla
I don't understand completely your last comment....

I don't understand completely your last comment. Also the snGrad is calculated with the boundary values of alpha1. What is the difference between the surface normal gradient calculated with snGrad...
Forum: OpenFOAM Bugs June 28, 2010, 11:07
Replies: 24
Views: 13,044
Posted By rcastilla
Henry, you are the expert. I am just now...

Henry,

you are the expert. I am just now beginning to understand the FOAM language.

After your comment, may I suggest some kind of correction factor, calculated in interfaceProperties, that...
Forum: OpenFOAM Bugs June 25, 2010, 10:48
Replies: 24
Views: 13,044
Posted By rcastilla
In fact, the correction of this formulation is...

In fact, the correction of this formulation is only made in the alphaContactAngle boundaries. I think that the numerical calculation of the flux is identical for the rest of the domain.

For the...
Forum: OpenFOAM Bugs June 25, 2010, 05:14
Replies: 24
Views: 13,044
Posted By rcastilla
solved: contact angle correction in interFoam

I have been working on capillary flows simulation with interFoam. When I make a simple simulation of the flow between two parallel vertical plates (2D), I got very strange results, due to an...
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