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October 8, 2004, 04:20 |
Please chenk my problem.(VOF)
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#1 |
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Hi...
I am trying to solve the droplet problem. The liquid, which has a shpere shape, is just on the surface and has 1.6 m/s. I am considering the gravity effect and the surface tension effect. Modeling : Axis, Usteady, Vof-Geo consture, Two phase(liquid and gas), Bounday Condition No inlet and outlet presure inlet for phase-2(liquid) = 0 wall for the mixture : default I made the volume fraction for the liquid and also patched. The problem is .... When I use the liquid which has the low viscosity(0.0012), I could get the resonable result. :> time step = 1e-05, UR = 0.3, Courant numebr = 0.25 But for the liquid which has the high viscosity(5.00), I could not get the solution even with the implicit. The continuity convergence is the main problem. It doenst seem to be converged. :> tiem step = 1e-09(takes 100 years??), and same. Is there any one who experienced this kind of problem? Thanks for your attention Jay |
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