# 2 phases flow system in cylindrical pipe

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 February 24, 2006, 01:04 2 phases flow system in cylindrical pipe #1 ivan Guest   Posts: n/a Hi, i am doing a simulation of oil and water in a cylindrical pipe but i facing the trouble that i can't get a convergence result for my simulation. I have tried to iterate it many times after modified the parameters inside fluent but the results still dissapointed me. Can anyone suggest to me what's going wrong? Erm...some parameters i used: d=0.0254m, 9.5m; mixture velocity=2.76m/s (and i determine the oil and water velocity by using mass balance after i fixed the volume fraction for them both, for example: water=0.1, oil=0.9,am i right?); steady state; k-epsilon. so, is that any 1 can help or guide me to get a convergence result? Thank you

 February 24, 2006, 01:29 Re: 2 phases flow system in cylindrical pipe #2 Kharicha Guest   Posts: n/a Answer the four questions: how is your meshing? typical radial and axial grid size... do you use a first or high order scheme ? what is your y+ (turbulence) value at the walls ? are you using the steady solver to reach steady state ? Then It would be possible to answer you...

 February 24, 2006, 03:58 Re: 2 phases flow system in cylindrical pipe #3 edi Guest   Posts: n/a Another point: what multiphase model is involved? Edi.

 February 25, 2006, 11:52 Re: 2 phases flow system in cylindrical pipe #4 A Guest   Posts: n/a Read Tutorial 18 (Using the Mixture and Eulerian Multiphase Models)

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