{"id":312458,"date":"2023-10-20T07:13:25","date_gmt":"2023-10-20T07:13:25","guid":{"rendered":"\/forum\/forums\/topic\/sound-speed-and-cv-of-aungeir-redlich-kwong-eos-in-ansys-fluent-2020-r1\/"},"modified":"2023-10-20T07:13:25","modified_gmt":"2023-10-20T07:13:25","slug":"sound-speed-and-cv-of-aungeir-redlich-kwong-eos-in-ansys-fluent-2020-r1","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/sound-speed-and-cv-of-aungeir-redlich-kwong-eos-in-ansys-fluent-2020-r1\/","title":{"rendered":"Sound Speed and Cv of Aungeir-Redlich-Kwong EOS in ANSYS Fluent 2020 R1"},"content":{"rendered":"

Hi, I used aungier-redlich-kwong equation of state to represent the choked flow (supersonic flow) of gas phase CO2 in converging-diverging nozzle. <\/p>\n

Here, how the sound speed is calculated in ANSYS? <\/p>\n

The website regarding the explanations about aungier-redlich-kwong equation of state only contains the calculation methods except sound speed and Cv (isochoric specific heat).<\/p>\n

(The website:  https:\/\/www.afs.enea.it\/project\/neptunius\/docs\/fluent\/html\/ug\/node335.htm<\/a>) <\/p>\n

As I know, sound speed in real-gas-model can be calculated as c = 1\/sqrt(partial rho \/ partial p)_s, where c is sound speed, rho is density, p is pressure, and s represents the isentropic process. <\/p>\n

Here, how can I export (partial rho \/ partial p) and Cv (isochoric specific heat) in fluent?<\/p>\n

 <\/p>\n

Thanks in advance. <\/p>\n","protected":false},"template":"","class_list":["post-312458","topic","type-topic","status-closed","hentry","topic-tag-ansys","topic-tag-fluent","topic-tag-sound","topic-tag-specific-heat"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t