{"id":38748,"date":"2019-11-05T10:25:01","date_gmt":"2019-11-05T10:25:01","guid":{"rendered":"\/forum\/forums\/topic\/evaporation-and-condensation-model\/"},"modified":"2019-11-05T10:25:01","modified_gmt":"2019-11-05T10:25:01","slug":"evaporation-and-condensation-model","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/evaporation-and-condensation-model\/","title":{"rendered":"Evaporation and Condensation Model"},"content":{"rendered":"<p>Hello,<\/p>\n<p><\/p>\n<p>I am trying to model a two-phase simulation with evaporation and condensation mass transfer process, To start the simulation I am trying to model a simple 2-d model. The geometry is like a bottle with a pressure outlet on the top, filled half with liquid and vapour phase of water. Heat flux is provided through the bottom of the bottle. The geometry is attached below.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/baf49daf-ad8c-4747-b4a2-aaf100e65ddc\/58e2f613-c75d-4127-a422-aafc00a9b7db_upload-pic.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>I am running a transient simulation. My solution is diverging, but if I put the wall boundary condition instead of the outlet then my simulation works fine. So, according to my understanding, the pressure outlet is causing the divergence in the problem. I am unable to understand that when I specify my pressure outlet open to atmospheric pressure (0 Gauge pressure) it should work fine in principle but why it is unable to find the solution. Is there a theoretical mistake in describing the problem?<\/p>\n","protected":false},"template":"","class_list":["post-38748","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["10926"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["1644"],"_bbp_subscription":["244242","296813"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["38748"],"_bbp_forum_id":["27792"],"_bbp_engagement":["22555","169866","296813"],"_bbp_voice_count":["3"],"_bbp_reply_count":["12"],"_bbp_last_reply_id":["318484"],"_bbp_last_active_id":["318484"],"_bbp_last_active_time":["2023-11-20 12:52:04"]},"test":"diva"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/38748","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\/38748\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=38748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}