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June 30, 2014, 04:17 |
two phase flow by interfoam
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#1 |
Senior Member
Ali reza
Join Date: Mar 2014
Posts: 110
Rep Power: 12 |
Hi
I have tried to simulate a T-junction multiphase flow by OpenFOAM and I face with some difficulties for example droplets are not formed and I don't know whats the problem. I have attached the picture of flow which is formed instead of droplets ,could you please take a look at this and help me . This is a micro channel which has been made by two lateral channels and one main channel. Blue color is an oil(continuous phase) in main channel and the red one is water (dispersed phase) which is flow in two lateral channels. It has been simulated with and without contact angel I am not sure for which phase I should define capillary number . these are my boundary conditions: alpha water Code:
dimensions [0 0 0 0 0 0 0]; internalField uniform 0; boundaryField { oil { type fixedValue; value uniform 1.0; } water-1 { type fixedValue; value uniform 0.0; } water-2 { type fixedValue; value uniform 0.0; } outlet { type inletOutlet; inletValue uniform 0; value uniform 0; } walls { type zeroGradient; } defaultFaces { type empty; } } Code:
dimensions [0 0 0 0 0 0 0]; internalField uniform 0; boundaryField { oil { type fixedValue; value uniform 1.0; } water-1 { type fixedValue; value uniform 0.0; } water-2 { type fixedValue; value uniform 0.0; } outlet { type inletOutlet; inletValue uniform 0; value uniform 0; } walls { type zeroGradient; } defaultFaces { type empty; } } Code:
dimensions [0 1 -1 0 0 0 0]; internalField uniform (0 1 0); boundaryField { oil { type fixedValue; value uniform (0.00138888889 0 0); } water-1 { type fixedValue; value uniform (0 -0.0002511111 0); } water-2 { type fixedValue; value uniform (0 -0.000651111111 0); } outlet { type zeroGradient; } walls { type fixedValue; value uniform (0 0 0); } } Code:
dimensions [1 -1 -2 0 0 0 0]; internalField uniform 0; boundaryField { oil { type zeroGradient; } water-1 { type zeroGradient; } water-2 { type zeroGradient; } outlet { type fixedValue; value uniform 0; } walls { type zeroGradient; } } |
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July 2, 2014, 09:12 |
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#2 |
Senior Member
Ali reza
Join Date: Mar 2014
Posts: 110
Rep Power: 12 |
There is no one to help?it is not an interesting topic?
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