{"id":167876,"date":"2022-03-29T14:44:32","date_gmt":"2022-03-29T14:44:32","guid":{"rendered":"\/forum\/forums\/topic\/boundary-mach-number-exceeds-maximum-limit-9-8e-01\/"},"modified":"2022-03-30T11:48:23","modified_gmt":"2022-03-30T11:48:23","slug":"boundary-mach-number-exceeds-maximum-limit-9-8e-01","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/boundary-mach-number-exceeds-maximum-limit-9-8e-01\/","title":{"rendered":"boundary Mach Number exceeds maximum limit, 9.8E-01"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hello,<\/p>\n<p>I am currently trying to model the gas flow coming from atmosphere, through a 0.381 mm capillary, into the first region of a vacuum chamber. Based upon the results from past literature, the incoming jet should have a velocity of 780 m\/s, putting it above the max mach number that I&#039;m allowed. I&#039;m currently using the pressure based solver with a mass flow inlet and a pressure outlet, with a target mass flow. How can I change this number, or is this tied to the solver I&#039;m using?<\/p>\n<p>Sincerely,<\/p>\n<p>Peyton<\/p>\n","protected":false},"template":"","class_list":["post-167876","topic","type-topic","status-closed","hentry","topic-tag-capillary-1","topic-tag-compressible-flow","topic-tag-fluent"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_btv_view_count":["2592"],"_bbp_likes_count":["0"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["167876"],"_bbp_forum_id":["27792"],"_bbp_engagement":["5976","38419"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["210063"],"_bbp_last_active_id":["210063"],"_bbp_last_active_time":["2022-03-30 11:48:23"]},"test":"psayasith"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/167876","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\/167876\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=167876"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}