{"id":160737,"date":"2021-07-27T15:13:39","date_gmt":"2021-07-27T15:13:39","guid":{"rendered":"\/forum\/forums\/topic\/nusselt-number-calculation-for-a-channel\/"},"modified":"2021-07-29T16:44:39","modified_gmt":"2021-07-29T16:44:39","slug":"nusselt-number-calculation-for-a-channel","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/nusselt-number-calculation-for-a-channel\/","title":{"rendered":"Nusselt number calculation for a channel"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Hi,<\/p>\n<p>I have Re=20,000, 165mm long, 15mm*15mm channel and trying to calculate Nu number.<\/p>\n<p>Tin=300K<\/p>\n<p>Charc. Lenght= 15mm<\/p>\n<p>300 W\/m^2 heat flux at top and bottom surface<\/p>\n<p>Based on Nu= 0.023 Re^0.8 * Pr^0.4 = 0.023* 20000^(0.8)*0.7441^(0.4)=56.39<\/p>\n<p>When I select like below, result looks different. <\/p>\n<p>How should I calculate Nu? What can be the post processing expression formula?<\/p>\n<p>Thank you,<\/p>\n<p>Anton<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"\/forum\/wp-content\/uploads\/forum-uploads\/261\/1DG95ZWJMN0T.png\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/261\/1DG95ZWJMN0T.png\" alt=\"Nu.png\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-160737","topic","type-topic","status-closed","hentry","topic-tag-heat-transfer","topic-tag-nusselt-number"],"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":["2340"],"_bbp_likes_count":["0"],"_bbp_subscription":["252223"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["160737"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","1391","22555"],"_bbp_voice_count":["3"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["186850"],"_bbp_last_active_id":["186850"],"_bbp_last_active_time":["2021-07-29 16:44:39"]},"test":"25cb5265d76a4f0a4f0c2cf5e34031ffff5f534e"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/160737","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\/160737\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=160737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}