{"id":49810,"date":"2020-11-12T20:52:21","date_gmt":"2020-11-12T20:52:21","guid":{"rendered":"\/forum\/forums\/topic\/correct-simple-way-of-calculating-extraction-of-local-heat-transfer-coefficients-in-fluent\/"},"modified":"2020-11-12T20:52:21","modified_gmt":"2020-11-12T20:52:21","slug":"correct-simple-way-of-calculating-extraction-of-local-heat-transfer-coefficients-in-fluent","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/correct-simple-way-of-calculating-extraction-of-local-heat-transfer-coefficients-in-fluent\/","title":{"rendered":"Correct &#038; simple way of calculating\/extraction of local heat transfer coefficients in Fluent"},"content":{"rendered":"<p>I conduct a conjugate heat transfer analysis in a diesel engine to see the heat transfer phenomena around the block and cylinder heads. In this analysis solid domain is solved in ANSYS Mechanical &#8211; steady state thermal by using the near wall temperatures and related HTCs exported from FLUENT where the fluid domain is solved by using the wall temperatures as boundary conditions exported data ANSYS Mechanical via two way System Coupling. About calculating\/extraction of local heat transfer coefficients in Fluent I have read all the posts shared in this forum and elsewhere but I couldn&#8217;t get a satisfactory explanation. I know to introduce a reference temperature to use Fluent&#8217;s surface heat transfer coefficient but it is not possible to represent the bulk temperature as a single value in such an huge domain. And if it was a straight pipe it would be better to crate as much as iso-surface and get wall and bulk temperature and calculate the local htcs. But it is also not practical in this problem since it is a complex geometry. So I am very confused how to define the local htcs, maybe an UDF but how? Or, are there any practical and correct way?nThank you in advanc.n<\/p>\n","protected":false},"template":"","class_list":["post-49810","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["22050"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":["_\n?C"],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["1839"],"_bbp_subscription":["251973"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["49810"],"_bbp_forum_id":["27792"],"_bbp_engagement":["25","199","177836"],"_bbp_voice_count":["3"],"_bbp_reply_count":["9"],"_bbp_last_reply_id":["133041"],"_bbp_last_active_id":["133041"],"_bbp_last_active_time":["2020-11-13 15:27:16"]},"test":"koray2255"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/49810","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\/49810\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=49810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}