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February 22, 2011, 11:42 |
Supersonic + VOF in fluent
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#1 |
New Member
Join Date: Feb 2011
Location: France
Posts: 9
Rep Power: 15 |
I want to set up a calculation for a supersonic gas jet impinging on a liquid surface
I heard that Fluent is not able to model compressible supersonic flows while using the VOF scheme and that it is very unstable. Is this true ? |
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February 22, 2011, 12:24 |
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#2 |
New Member
Rahul Kumar
Join Date: Feb 2011
Location: West Lafayette, IN
Posts: 9
Rep Power: 15 |
I would agree, VOF and compressible flow do not go together very well. But you are now talking about pushing CFD to its edge. I dont think any commerical CFD software can solve this problem.
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March 31, 2011, 10:08 |
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#3 |
New Member
Join Date: Feb 2011
Location: France
Posts: 9
Rep Power: 15 |
I managed to do it !
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September 1, 2015, 01:40 |
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#4 |
New Member
AmBh
Join Date: Aug 2015
Posts: 7
Rep Power: 10 |
Hi,
i am also analyzing supersonic gas jets (oxygen) impinging on a liquid in fluent so as to track the interface and analyze splashing/sloshing phenomenon. Original problem is in 3D with 6 nozzles but i am starting in 2D with 2 nozzles (taking a plane). I have used transient,VOF method, k-epsilon, used surface tension, wall adhesion. at the inlet, velocity has been specified with respect to mach no. Variable time stepping method was used and i could iterate to 1 sec (no of time step 5000). No of time steps will be increased for increasing to 5/10 secs. Can you tell if i should go for 3D instead of 2D? i am not able to decide. Also, if steady state is attainable in such situation. |
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