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Showing results 1 to 9 of 9 Search took 0.00 seconds. Search: Posts Made By: rcastilla

Forum: OpenFOAM Programming & Development June 25, 2010, 06:55

Replies: 15 "real" contact angle in the first cell layer Views: 6,749 Posted By rcastilla I think I have found the error in interFoam. I... I think I have found the error in interFoam. I have open a new thread in OpenFoam/Bugs: http://www.cfd-online.com/Forums/openfoam-bugs/77509-solved-contact-angle-correction-interfoam.html Again...

Forum: OpenFOAM Programming & Development June 22, 2010, 14:12

Replies: 15 "real" contact angle in the first cell layer Views: 6,749 Posted By rcastilla Finally, I think that the interface compression... Finally, I think that the interface compression procedure is not the cause of the modification of the contact angle, but, as it modifies the gradient of alpha, the effect is different. In fact, it is...

Forum: OpenFOAM Programming & Development June 18, 2010, 06:06

Replies: 15 "real" contact angle in the first cell layer Views: 6,749 Posted By rcastilla Hi, after many tests, I concluded that the... Hi, after many tests, I concluded that the interface compression modifies, somehow, the interface angle in the first cell attached to the wall. This modification depends on the mesh size. I...

Forum: OpenFOAM Programming & Development March 25, 2010, 04:03

Replies: 15 "real" contact angle in the first cell layer Views: 6,749 Posted By rcastilla Actually, I don't think that the problem is in... Actually, I don't think that the problem is in the VOF method, but only in the interface compression procedure. I have found this reference: K. K. So, X. Y. Hu and N. A. Adams, Anti-diffusion...

Forum: OpenFOAM Programming & Development March 23, 2010, 15:08

Replies: 15 "real" contact angle in the first cell layer Views: 6,749 Posted By rcastilla This is the state of the problem: Two... This is the state of the problem: Two vertical plates separated by a gap of 300 microns Gravity multiplied by 10 (i.e. g=98.1 m/s^2) in order to reduce the computational domain. pressure...

Forum: OpenFOAM Programming & Development January 21, 2010, 07:39

Replies: 15 "real" contact angle in the first cell layer Views: 6,749 Posted By rcastilla Thank you, Richard, for your explanation. It... Thank you, Richard, for your explanation. It makes sense. I am thinking that, in fact, there is no U, since the flow is in equilibrium, and the interface position is constant, but there are the...

Forum: OpenFOAM Programming & Development January 20, 2010, 08:50

Replies: 15 "real" contact angle in the first cell layer Views: 6,749 Posted By rcastilla Some results... Here I post the results for three different mesh sizes. The labels are for the edgeGrading in blockMeshDict, with the same number of cells. The sizes of the cell close to the walls are: D2/D1= 4...

Forum: OpenFOAM Programming & Development January 18, 2010, 16:48

Replies: 15 "real" contact angle in the first cell layer Views: 6,749 Posted By rcastilla Hi, Sebastian, thank you for your answer. ... Hi, Sebastian, thank you for your answer. Well, if I am not wrong, the definition of the normal vector is with the angle between interface and wall. That is: normal vector to interface =...

Forum: OpenFOAM Programming & Development January 18, 2010, 09:56

Replies: 15 "real" contact angle in the first cell layer Views: 6,749 Posted By rcastilla "real" contact angle in the first cell layer Hi, I am trying to simulate capillary driven flows in micro-channels. When I saw some strange results, I made a simple test-bench: I simply simulated the capillary climbing of fluid between two...

Showing results 1 to 9 of 9

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