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Showing results 1 to 11 of 11 Search took 0.00 seconds. Search: Posts Made By: rcastilla

Forum: OpenFOAM Programming & Development May 11, 2012, 11:24

Replies: 135 parasitic currents Views: 32,471 Posted By rcastilla The negative boundness behaves much better with... The negative boundness behaves much better with explicit with my case (liquid-gas). But I am not sure what overall behaviour is better Robert

Forum: OpenFOAM Programming & Development May 10, 2012, 13:30

Replies: 135 parasitic currents Views: 32,471 Posted By rcastilla Actually, I realized that it was yet with... Actually, I realized that it was yet with MULES::implicit. interFoam uses MULES::explicit. I have switched, and, though the simulation is very slow, it seems to behave better (at least the negative...

Forum: OpenFOAM Programming & Development May 10, 2012, 09:17

Replies: 135 parasitic currents Views: 32,471 Posted By rcastilla Anton, I get negative values of alpha1, up... Anton, I get negative values of alpha1, up to 1e-5. With the same case in interFoam (not SSF) I didn't have this problem. The negative values of alpha1 where under 1e-40. Can that be due to the...

Forum: OpenFOAM Programming & Development May 10, 2012, 07:38

Replies: 135 parasitic currents Views: 32,471 Posted By rcastilla Anton, have you tested it? I think that... Anton, have you tested it? I think that where you write max(1.0, Foam::min(alpha1_, 0.0)) it should be min(1.0, Foam::max(alpha1_, 0.0))

Forum: OpenFOAM Programming & Development May 10, 2012, 07:10

Replies: 135 parasitic currents Views: 32,471 Posted By rcastilla I am making some testing with capillary rise. I... I am making some testing with capillary rise. I am experiencing problems with the sign of the argument in sqrt in the factor w. I can overcome that with a higher value than 10^-6 in eq. (17), but I...

Forum: OpenFOAM Programming & Development May 8, 2012, 08:32

Replies: 135 parasitic currents Views: 32,471 Posted By rcastilla Hi, I have created a clone of the code and... Hi, I have created a clone of the code and modified the interFoam.C and pEqn.H to make it compatible with OF 2.1.0. Also I have modified the dambreak testcase. Robert

Forum: OpenFOAM Programming & Development May 8, 2012, 06:32

Replies: 135 parasitic currents Views: 32,471 Posted By rcastilla I have have made some changes in pimple calls in... I have have made some changes in pimple calls in interFoam.C in order to compile it with OF2.1.0: in line 93: while (pimple.loop() || cycle<3) in line 153: for (int...

Forum: OpenFOAM Programming & Development March 5, 2010, 11:07

Replies: 135 parasitic currents Views: 32,471 Posted By rcastilla I have mistyped the term. The suggestion of... I have mistyped the term. The suggestion of Brackbill is rho/<rho>, i.e., fvc::interpolate(2*rho/(twoPhaseProperties.rho1()+twoPhaseProperties.rho2()) This term has to be 1 in the interphase,...

Forum: OpenFOAM Programming & Development March 1, 2010, 10:09

Replies: 135 parasitic currents Views: 32,471 Posted By rcastilla Hi, Denis, actually I have only modified the... Hi, Denis, actually I have only modified the pEqn.H, since the Ueqn.H is only calculated if momentumPredicor is "true", which is not normally the case. Hope it will be useful for you. Best...

Forum: OpenFOAM Programming & Development November 4, 2009, 09:12

Replies: 135 parasitic currents Views: 32,471 Posted By rcastilla Hi, kumar, the paper by Brackbill is, as far... Hi, kumar, the paper by Brackbill is, as far as I know, the first on parasitic currents. You can read also Harvie et al. Applied Mathematical Modelling, 30 (2006) 1056-1066. jaswi, not...

Forum: OpenFOAM Programming & Development October 30, 2009, 10:58

Replies: 135 parasitic currents Views: 32,471 Posted By rcastilla parasitic currents Hi, I have working with high weber number flows (capillary flows) and I am finding som important parasitic currents in the interface. I have read that Brackbill (1992) J. Comput. Phys. 100...

Showing results 1 to 11 of 11

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