Hi, I am currently running a simulation of the flow distribution of microchannel heat exchanger header. I figured out that if I give pressure outlet with at all channels in fixed 0 gauge pressure, it shows severe backflow and the solution is totally wrong.<\/p>\n
On the other hand, I figured out that if I use the pressure outlet- from neighboring cells (pressure specifcation method, not backflow), I was able to get reasonable solutions.<\/p>\n
To justify using this boundary condition, I was looking through the ansys manual, but there was no detailed description of this method. Can anyone help me how this boundary condition setting works? Is there any difference between outlet(outflow) boundary condition?<\/p>\n
<\/p>\n
Thank you<\/p>\n","protected":false},"template":"","class_list":["post-461717","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["461717"],"_bbp_subscription":["712663","199"],"_bbp_author_ip":[null],"_bbp_last_reply_id":["461751"],"_bbp_last_active_id":["461751"],"_bbp_last_active_time":["2026-07-23 16:20:19"],"_bbp_reply_count":["3"],"_bbp_reply_count_hidden":["0"],"_bbp_engagement":["1","199","712663"],"_bbp_likes_count":["0"],"_btv_view_count":["42"],"application":["FLUENT"],"emailnotification":[null],"_bbp_topic_status":["unanswered"],"_bbp_voice_count":["3"]},"test":"hwang289purdue-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/461717","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\/461717\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=461717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}