{"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":"<p>Hi, I used aungier-redlich-kwong equation of state to represent the choked flow (supersonic flow) of gas phase CO2 in converging-diverging nozzle.&nbsp;<\/p>\n<p>Here, how the sound speed is calculated in ANSYS?&nbsp;<\/p>\n<p>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<p>(The website: &nbsp;<a href=\"https:\/\/www.afs.enea.it\/project\/neptunius\/docs\/fluent\/html\/ug\/node335.htm\" target=\"_blank\" rel=\"noopener\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/www.afs.enea.it\/project\/neptunius\/docs\/fluent\/html\/ug\/node335.htm&amp;source=gmail&amp;ust=1697871914922000&amp;usg=AOvVaw0uffDZmWL6Smv2K_kCxjKf\">https:\/\/www.afs.enea.it\/project\/neptunius\/docs\/fluent\/html\/ug\/node335.htm<\/a>)&nbsp;<\/p>\n<p>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.&nbsp;<\/p>\n<p>Here, how can I export (partial rho \/ partial p) and Cv (isochoric specific heat) in fluent?<\/p>\n<p>&nbsp;<\/p>\n<p>Thanks in advance.&nbsp;<\/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":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["36318","15845","54120"],"_bbp_author_ip":["96.7.218.223"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["800"],"_bbp_likes_count":["0"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["312458"],"_bbp_forum_id":["27792"],"_bbp_engagement":["36318","54120"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["1"],"_bbp_last_reply_id":["320287"],"_bbp_last_active_id":["320287"],"_bbp_last_active_time":["2023-11-30 14:28:20"]},"test":"hanwyonsei-ac-kr"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/312458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/312458\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=312458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}