{"id":217599,"date":"2022-07-03T14:57:38","date_gmt":"2022-07-03T14:57:38","guid":{"rendered":"\/forum\/forums\/topic\/flow-courant-number-in-ansys-fluent\/"},"modified":"2022-07-03T14:57:38","modified_gmt":"2022-07-03T14:57:38","slug":"flow-courant-number-in-ansys-fluent","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/flow-courant-number-in-ansys-fluent\/","title":{"rendered":"flow courant number in Ansys fluent"},"content":{"rendered":"<p>Greetings,<br \/>I am new to this forum.<br \/>So I am working on a 2D transient simulation of a vertical axis wind turbine. I tried first to run the simulation at tip speed ratio (TSR 2.58). Things were fine, but when I moved to TSR 1, I am getting a very low results in comparison with experimental results in terms of comparing the power coefficient Cp. I am using the coupled pressure-velocity solver (it is pressure based type) so I noticed that in the solution control panel, there is a flow courant number that is 200 by default. I changed it to 1, and run the simulation. I got close results to experimental.<br \/>I then tried to change this Flow courant number to 0.5, I got different results than the 1 flow courant number case.<br \/>My question is what is the recommended flow courant number that can be used, and is using a 1 courant number wrong ?<br \/>thank you in advance.<\/p>\n","protected":false},"template":"","class_list":["post-217599","topic","type-topic","status-closed","hentry","topic-tag-2d-simulations","topic-tag-ansys-fluent","topic-tag-courant-number"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["259474","22555"],"_bbp_author_ip":["204.2.243.124"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["2860"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["217599"],"_bbp_forum_id":["27792"],"_bbp_engagement":["22555","259474"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["217963"],"_bbp_last_active_id":["217963"],"_bbp_last_active_time":["2022-07-07 10:45:31"]},"test":"ahmad-hijazi05lau-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/217599","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\/217599\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=217599"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}