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Ansys Learning Forum Forums Discuss Simulation Fluids Sound Speed and Cv of Aungeir-Redlich-Kwong EOS in ANSYS Fluent 2020 R1 Reply To: Sound Speed and Cv of Aungeir-Redlich-Kwong EOS in ANSYS Fluent 2020 R1

Nilay Pedram
Forum Moderator

Hello,
For real gases, no need to get the derivatives to get the speed of sound as you can get the information from post-processing (under contour or other instances). For Cv, you can probably get it using UDFs. 
Hope this helps. Thanks!

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