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[Sponsors] |
December 13, 2009, 18:57 |
Jet simulation
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#1 |
New Member
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Hi,
I'm a newbie of OF, but I'm trying to learn how to handle it. I'd like to simulate a typical fluid dynamic case, i.e. an axisymmetric jet-flow in an open space. Is there someone who can help me? Thanks in advance Michele |
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December 14, 2009, 02:38 |
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#2 |
Senior Member
Markus Rehm
Join Date: Mar 2009
Location: Erlangen (Germany)
Posts: 184
Rep Power: 17 |
Hello,
have a look at makeAxialMesh for conversion into wedgy-type mesh http://openfoamwiki.net/index.php/Contrib_MakeAxialMesh and in run/lesInterFoam/nozzleFlow2D there is also an example of a blockMesh grid. Hope that helps, regards, Markus. |
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December 14, 2009, 06:25 |
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#3 |
New Member
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Hi Markus,
thank you very much for your quick replay. I took a look at the tutorial you suggested me for the solver (interFoam): i think it is too advanced for my present knowledge,so can you help me? Furthermore the case I'd like to simulate is easier I guess: in fact I want only to reproduce an air jet entering a not-bounded atmosphere where air is in rest. If you could help me, I'd appreciate very much. Thank you, Michele |
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December 15, 2009, 02:25 |
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#4 |
Senior Member
Markus Rehm
Join Date: Mar 2009
Location: Erlangen (Germany)
Posts: 184
Rep Power: 17 |
Hi Jack,
maybe turbFoam (transient) or simpleFoam (steady state) would be appropriate for you. But I wanted to tell you that the mesh is axisymmetric as you wanted. Regards, Markus. |
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February 18, 2010, 12:38 |
Jet simulation
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#5 |
Member
hamdi
Join Date: Mar 2009
Posts: 75
Rep Power: 17 |
I'm doing a numerical calculation of an injector by simplefoam solver, geometry is now axisymmetric (upperwall represents an area of torpido, interWall that of the outer surface of the jet type slip to see the behavior of velocity Uy, but I have two bad results:
1 - the Massflow is not constant when I apply CalcMasseFlow between inlet and outlet 2 - I have a pressure not stable I spend a lot of time to make changes in my geometry and methods of calculation but I have not been successful; click on this link to download my case. http://www.sendspace.com/file/6nmw8l If you have any ideas they are welcome. Regards. |
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