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March 25, 2014, 04:32
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Water surface in open-channel model
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#1 |
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New Member
Thanatip
Join Date: Mar 2014
Posts: 1
Rep Power: 0  |
Hi, I have a problem.I run open-channel flow model with 2 phases (air, water). I want to know water surface (depth of flow) in mid section of channel. How I need to do ?
Please help me. I'm very quickly. Thank you Mark. |
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March 31, 2014, 06:45
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#2 |
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New Member
amit
Join Date: Mar 2014
Posts: 13
Rep Power: 12 |
i have the same problem. i am using VOF and want to see the air water interface. this seems to be difficult as when i export volume fraction data to excel or even observing contour, the interface is not well defined. the volume fraction is varying and giving as low volume fraction as .5 where it is supposed to have 1. what could be the problem or what could be the alternative please suggest...
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April 5, 2014, 12:42
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#3 | |
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New Member
JT.Q
Join Date: Dec 2009
Posts: 11
Rep Power: 16 |
Quote:
surface-iso surface choose density or volume fraction as iso-parameter,specify 500 as density or 0.5 as VOF respectively.the you will create the interface between water and air. VOF method cannot give sharp interface, it is a continuate approach in multiphase flow simulation, so it approximately solve "phase jump" problems, accuracy of interface location prediction depends on mesh density around interface |
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April 5, 2014, 12:47
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#4 | |
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New Member
JT.Q
Join Date: Dec 2009
Posts: 11
Rep Power: 16 |
Quote:
insert iso-surface as density or volume fraction insert iso-clip at mid plan,choose iso-surface as clip surface export the iso-clip date and you will see the coordinates of interface in mid section |
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October 21, 2015, 12:43
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#5 |
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Senior Member
Join Date: Oct 2014
Posts: 124
Rep Power: 11 |
Hi...
I followed your instructions and I succeeded in it, so they have been very useful. Thank you. Anyway, I would like to ask you if you know how to do a contour plot of water depths for an open channel flow, directly in Fluent, and not exporting the data and making the contour by Matlab (for instance). Thank you Bye |
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