Supercritical fluid

hmzha · October 24, 2017, 03:20

Hi,

Has anyone had success in simulating a supercritical fluid in Converge? I have tried defining the supercritical (sc) fluid as gas at supercritical temperature but the case crashes. I have also tried defining the sc fluid as liquid and put additional fluid property in liquid.dat but this case also crashes. I used the PR eqn of state and real gas property as a function of temperature. I am not sure of any other option. Or is it possible to write a udf that define fluid properties at sc conditions?

Thanks

nitesh.attal · October 25, 2017, 16:11

Hello Afiqah,

We have simulated supercritical fluids in the past using a UDF (tabulated fluid properties and equation of state). Please email support@convergecfd.com and request access to this UDF.

Thanks,

hmzha · October 25, 2017, 21:47

That's great, thanks Nitesh.

October 24, 2017, 03:20	Supercritical fluid	#1
hmzha New Member Afiqah Hamzah Join Date: Jul 2016 Posts: 12 Rep Power: 10	Hi, Has anyone had success in simulating a supercritical fluid in Converge? I have tried defining the supercritical (sc) fluid as gas at supercritical temperature but the case crashes. I have also tried defining the sc fluid as liquid and put additional fluid property in liquid.dat but this case also crashes. I used the PR eqn of state and real gas property as a function of temperature. I am not sure of any other option. Or is it possible to write a udf that define fluid properties at sc conditions? Thanks

October 25, 2017, 16:11		#2
nitesh.attal Senior Member Nitesh Attal Join Date: Sep 2017 Location: Convergent Science, Northville MI Posts: 113 Rep Power: 9	Hello Afiqah, We have simulated supercritical fluids in the past using a UDF (tabulated fluid properties and equation of state). Please email support@convergecfd.com and request access to this UDF. Thanks, __________________ Nitesh Attal Principal Engineer \| Applications CONVERGECFD

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October 25, 2017, 21:47		#3
hmzha New Member Afiqah Hamzah Join Date: Jul 2016 Posts: 12 Rep Power: 10	That's great, thanks Nitesh.