{"id":29065,"date":"2018-04-10T18:27:51","date_gmt":"2018-04-10T18:27:51","guid":{"rendered":"\/forum\/forums\/topic\/heat-transfer-coefficient\/"},"modified":"2023-11-30T10:42:23","modified_gmt":"2023-11-30T10:42:23","slug":"heat-transfer-coefficient","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/heat-transfer-coefficient\/","title":{"rendered":"Heat transfer coefficient"},"content":{"rendered":"<p>Hello.<\/p>\n<p><\/p>\n<p>I have some doubts that i would like to clarify. Consider a fixed plate heat exchanger air-air with quasi counter flow. The heat exchange is through forced convection.<\/p>\n<p><\/p>\n<p>How should I calculate the coefficient of heat transfer? Directly from the fluent across the surfaces&nbsp;integrals &#8211;&gt; area weighted average or through the formula h = q \/ at, where do I take the values of twall and tref and q from the fluent?<\/p>\n<p><\/p>\n<p>The next question is about&nbsp;boundary conditions. when defining the boundary conditions, is it necessary to consider heat transfer by convection between the air and the plate, by selecting the CONVECTION point in the&nbsp;THERMAL&nbsp;conditions?<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>Thanks<\/p>\n","protected":false},"template":"","class_list":["post-29065","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["1232"],"_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":["1","1","1","1","1"],"_btv_view_count":["22925"],"_bbp_subscription":["259760","271203","277461","46089","303371"],"_edit_lock":["1659341887:76739"],"_bbp_status":["publish"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["29065"],"_bbp_forum_id":["27792"],"_bbp_engagement":["154844","154942","156482","169506","259760","271203","277461"],"_bbp_voice_count":["7"],"_bbp_reply_count":["16"],"_bbp_reply_count_hidden":["2"],"_bbp_last_reply_id":["253044"],"_bbp_last_active_id":["253044"],"_bbp_last_active_time":["2023-03-08 11:54:44"]},"test":"hugo-cfd"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/29065","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\/29065\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=29065"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}