{"id":158218,"date":"2021-05-06T13:16:13","date_gmt":"2021-05-06T13:16:13","guid":{"rendered":"\/forum\/forums\/topic\/using-a-pressure-inlet-outlet-condition-in-fluent\/"},"modified":"2022-04-04T17:47:25","modified_gmt":"2022-04-04T17:47:25","slug":"using-a-pressure-inlet-outlet-condition-in-fluent","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/using-a-pressure-inlet-outlet-condition-in-fluent\/","title":{"rendered":"Using a pressure inlet\/outlet condition in fluent"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi<\/p>\n<p>I&#039;m simulating a 2D multiphase phase change problem of water vapour condensing ontop of a pipe wall. I&#039;m currently following a paper to validate my simulation. However in the paper they use OpenFoam to simulate the problem in which the boundary conditions they state are slightly different.<\/p>\n<p>For example on the figure below at boundary b), they use a pressure inlet\/outlet boundary condition where the boundary condition switches between being a zerograident condition when outflow occurs and a fixedvalue when inflow occurs. <\/p>\n<p>In my case I will have outflow and inflow since the water vapour will be coming into the domain as the wall temperature is below the saturation temperature of the fluid domain (50 K difference) and outflow will occur as the condensate will drip off the pipe and exit the domain. <\/p>\n<p><\/p>\n<p><\/p>\n<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"\/forum\/wp-content\/uploads\/forum-uploads\/036\/V1BN0Q99KR0F.png\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/036\/V1BN0Q99KR0F.png\" alt=\"image.png\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-158218","topic","type-topic","status-closed","hentry","topic-tag-evaporation-condensation"],"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":["8184"],"_bbp_likes_count":["0"],"_bbp_subscription":["14168"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["158218"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","406","14168","187856"],"_bbp_voice_count":["4"],"_bbp_reply_count":["41"],"_bbp_last_reply_id":["302647"],"_bbp_last_active_id":["302647"],"_bbp_last_active_time":["2023-08-22 07:26:07"]},"test":"navsing"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/158218","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\/158218\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=158218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}