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

Forum: OpenFOAM Running, Solving & CFD March 14, 2011, 12:37

Replies: 23 strange curvature with interFoam (comparison with Brackbill work) Views: 9,350 Posted By duongquaphim I implemented in OF. Cheers Duong I implemented in OF. Cheers Duong

Forum: OpenFOAM Running, Solving & CFD March 14, 2011, 03:52

Replies: 23 strange curvature with interFoam (comparison with Brackbill work) Views: 9,350 Posted By duongquaphim Hi Andrea, So you applied a filter on... Hi Andrea, So you applied a filter on grad(alpha1) such as grad(alpha1) = 0 when 0<alpha1<1. Do you find much improvement on that? I tried to filter in that way but it did not work very well. Can...

Forum: OpenFOAM Running, Solving & CFD March 10, 2011, 17:15

Replies: 23 strange curvature with interFoam (comparison with Brackbill work) Views: 9,350 Posted By duongquaphim Hi Sebastian, In my case, the droplet... Hi Sebastian, In my case, the droplet eventually move out of the center after a while (1-2 seconds after getting equilibrium). However, the shape of the droplet is still in equilibrium when it...

Forum: OpenFOAM Running, Solving & CFD March 10, 2011, 14:43

Replies: 23 strange curvature with interFoam (comparison with Brackbill work) Views: 9,350 Posted By duongquaphim Hi all, I have quite interesting thing poped... Hi all, I have quite interesting thing poped up and want to share. I tried a very similar test case with initializing a square bubble (let's call like that) instead of a circle and ran the case...

Forum: OpenFOAM Running, Solving & CFD March 10, 2011, 04:23

Replies: 23 strange curvature with interFoam (comparison with Brackbill work) Views: 9,350 Posted By duongquaphim Hi Gijs, Yes it is. And this is the problem... Hi Gijs, Yes it is. And this is the problem I am addressing. I can not find any explanations for that behaviour. I thought initially that OF must give similar result as Brackbill or Ubbink but it...

Forum: OpenFOAM Running, Solving & CFD March 9, 2011, 14:20

Replies: 23 strange curvature with interFoam (comparison with Brackbill work) Views: 9,350 Posted By duongquaphim Hi Gijs, Indeed, the obtained pressure value... Hi Gijs, Indeed, the obtained pressure value is quite good. I also see that behaviour. The only thing I worry is that the calculated curvature is very different from the correct value. The...

Forum: OpenFOAM Running, Solving & CFD March 9, 2011, 04:39

Replies: 23 strange curvature with interFoam (comparison with Brackbill work) Views: 9,350 Posted By duongquaphim Hi all, I also tried to switch off the... Hi all, I also tried to switch off the convection and viscosity term in UEqn.H and ran the case. It give incorrect result also. And Sebastian is right, a high viscosity would damp out the...

Forum: OpenFOAM Running, Solving & CFD March 9, 2011, 04:29

Replies: 23 strange curvature with interFoam (comparison with Brackbill work) Views: 9,350 Posted By duongquaphim Hi Sebastian, Thank your for quick respond.... Hi Sebastian, Thank your for quick respond. So as I understood, you face similar problem with interFoam. I found out that Unno Ubbink can obtain quite nice curvature with one of the first version...

Forum: OpenFOAM Running, Solving & CFD March 8, 2011, 09:36

Replies: 23 strange curvature with interFoam (comparison with Brackbill work) Views: 9,350 Posted By duongquaphim strange curvature with interFoam (comparison with Brackbill work) Dear all, I am working with surface tension dominant flow using interFoam. In my simulation, the calculation of surface tension force or curvature is important. I did verify interFoam with...

Showing results 1 to 9 of 9

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