


{"id":457912,"date":"2026-05-10T15:40:48","date_gmt":"2026-05-10T15:40:48","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/why-does-aedt-icepak-obtain-a-negative-total-heatflowrate-at-the-inlet\/"},"modified":"2026-05-10T15:40:48","modified_gmt":"2026-05-10T15:40:48","slug":"why-does-aedt-icepak-obtain-a-negative-total-heatflowrate-at-the-inlet","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/why-does-aedt-icepak-obtain-a-negative-total-heatflowrate-at-the-inlet\/","title":{"rendered":"Why does AEDT Icepak obtain a negative total Heatflowrate at the inlet\uff1f"},"content":{"rendered":"<p>&lt;div&gt;Why does AEDT Icepak obtain a negative total Heatflowrate at the inlet, while it is positive at the outlet, and the absolute value at the inlet is greater than that at the outlet, which is completely abnormal&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;We noticed that the airflow from the inletVent is directed into the Region, and the ambient temperature is 20cel. At this point, isn&#8217;t the heat flow rate entering the inlet non-zero?&lt;\/div&gt;&lt;div&gt;However, the result obtained through Field summary is: <strong>-9.33766W<\/strong>&lt;\/div&gt;&lt;div&gt;This indicates that his heat is flowing out of the inlet.&lt;\/div&gt;&lt;div&gt;The heat flow rate of the outletVent should be exactly equal to 1W of Source1, but the result is <strong>8.3381 W<\/strong>&lt;\/div&gt;&lt;div&gt;Why are these data so confusing? I can&#8217;t understand it. I sincerely want to ask for advice. If I don&#8217;t solve this doubt, I don&#8217;t think I can continue to use it.&lt;\/div&gt;&lt;div&gt;I would be extremely grateful for any feedback or discussion. I have been troubled by this issue for a long time. Thank you very, very much&lt;\/div&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Ihave upload the project\uff0cyou can download from: <a href=\"https:\/\/pan.baidu.com\/s\/1vHngc0lAU6IFeQqFAQRBXA?pwd=twe9\">https:\/\/pan.baidu.com\/s\/1vHngc0lAU6IFeQqFAQRBXA?pwd=twe9<\/a>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/10-05-2026-1778425503-mceclip2.png\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/10-05-2026-1778425844-mceclip5.png\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;<a title=\"ProjectIcepakBugs.zip\" href=\"https:\/\/pan.baidu.com\/s\/1vHngc0lAU6IFeQqFAQRBXA?pwd=twe9\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/10-05-2026-1778425897-mceclip6.png\" \/><\/a><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/10-05-2026-1778425450-mceclip1.png\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/10-05-2026-1778425702-mceclip3.png\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/10-05-2026-1778425762-mceclip4.png\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/10-05-2026-1778424693-mceclip0.png\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/10-05-2026-1778426682-mceclip7.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-457912","topic","type-topic","status-publish","hentry","topic-tag-AEDTICEPAK-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27793"],"_bbp_topic_id":["457912"],"_bbp_subscription":["319944"],"_bbp_author_ip":["125.93.9.15"],"_bbp_last_reply_id":["457913"],"_bbp_last_active_id":["457913"],"_bbp_last_active_time":["2026-05-10 16:07:57"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["1"],"_bbp_engagement":["319944"],"_btv_view_count":["45"],"_bbp_topic_status":["unanswered"]},"test":"topreap126-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/457912","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\/457912\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=457912"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}