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compressibleInterFoam: specific gas constant of liquids |
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February 1, 2015, 12:24 |
compressibleInterFoam: specific gas constant of liquids
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#1 |
New Member
Join Date: Dec 2013
Posts: 3
Rep Power: 12 |
Hey,
I am a new user on OpenFoam. I would like to run a compressible, multiphase (molten metal and air) case with compressibleInterFoam. I use “perfectFluid” for the molten metal and I have a question about the specific gas constant R. The significance of this value has already been discussed in the thread http://www.cfd-online.com/Forums/ope...ion-state.html . Why is the gas constant in the tutorials for water 3000? I don´t know whether the value was calculated or just selected. Regards, Niklas |
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April 10, 2015, 07:12 |
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#2 |
New Member
mohammed musthafa
Join Date: Dec 2014
Location: India
Posts: 5
Rep Power: 12 |
Dear Niklas
Its easy to run that case, but the gas constant value given in tutorial is not correct. So kindly check all the values before you run your case. Regards musthafa |
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May 17, 2016, 05:23 |
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#3 |
Senior Member
Huynh Phong Thanh
Join Date: Aug 2013
Location: Ho Chi Minh City
Posts: 105
Rep Power: 13 |
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November 5, 2017, 18:59 |
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#4 | |
Senior Member
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Quote:
I was looking for an explanation of R and I found your post. I think your calc is correct. According to a previous post, I think that value 3000 is to give an incompressible behavour to liquid phase of specie; 461.9 should refer to compressibility factor for vapour phase of water ...just a trick...should it be? |
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January 22, 2024, 12:04 |
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#5 |
New Member
Nainah
Join Date: Jan 2024
Posts: 3
Rep Power: 2 |
Hi there,
In the compressibleInterFoam solver, how can the value of air density be adjusted? Thank you |
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Tags |
compressibleinterfoam, gas constant, perfectfluid, psi, thermophysicalproperties |
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