{"id":161852,"date":"2021-09-02T07:38:14","date_gmt":"2021-09-02T07:38:14","guid":{"rendered":"\/forum\/forums\/topic\/boundary-conditions-and-setting-up-of-values\/"},"modified":"2021-09-02T07:59:53","modified_gmt":"2021-09-02T07:59:53","slug":"boundary-conditions-and-setting-up-of-values","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/boundary-conditions-and-setting-up-of-values\/","title":{"rendered":"Boundary conditions and setting up of values"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi,<\/p>\n<p>I am doing a supersonic combustor duct flow analysis, with combustion (species transport) and have a doubt about its boundary conditions.<\/p>\n<p>I know the inlet conditions of both my air inlet and fuel inlet i.e. velocity, pressure, and temperature and the mass fractions. But I do not know the pressure, velocity nor the temperature for the outlet.<\/p>\n<p>So what boundary conditions will suit my needs?<\/p>\n<p>I was thinking to go with pressure far-field for the inlets and the outlet, where I will set the available parameters for the inlets, and leave the outlet pressure, velocity &amp; temperature to be blank i.e.&quot;0&quot; <\/p>\n<p>So if I set it like that, will fluent take into consideration the flow parameters from the inside of the combustor while solving and come up with the flow condition that should be for the outlet on its own? <\/p>\n<p>Or is there any rule that I should always set the values for all the parameters even in the outlet before hand?<\/p>\n<p>Thank you<\/p>\n","protected":false},"template":"","class_list":["post-161852","topic","type-topic","status-closed","hentry","topic-tag-2d","topic-tag-ansys-fluent","topic-tag-ansys-workbench","topic-tag-boundary-conditions","topic-tag-cfd"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_old_reply_author_name_id":["Anonymous"],"_bbp_old_is_reply_anonymous_id":["false"],"_btv_view_count":["1202"],"_bbp_likes_count":["0"],"_bbp_subscription":["240836","275242"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["161852"],"_bbp_forum_id":["27792"],"_bbp_engagement":["191131","222842","275242"],"_bbp_voice_count":["3"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["249921"],"_bbp_last_active_id":["249921"],"_bbp_last_active_time":["2023-02-15 03:11:29"]},"test":"abrahamkevin-jgmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/161852","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\/161852\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=161852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}