{"id":392932,"date":"2024-11-06T09:55:51","date_gmt":"2024-11-06T09:55:51","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fan-flow-simulation\/"},"modified":"2024-11-06T09:55:51","modified_gmt":"2024-11-06T09:55:51","slug":"fan-flow-simulation","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fan-flow-simulation\/","title":{"rendered":"Fan flow simulation"},"content":{"rendered":"<p>&lt;p&gt;Hi,&lt;\/p&gt;&lt;p&gt;I have a doubt about pressure results in a simulation with two fans in ansys discovery. Fans have been set with predefined fan library (manufacturer data &#8211; icepack)&lt;\/p&gt;&lt;p&gt;After running the simulation, results show negative values for pressure drop, both static and total.&lt;\/p&gt;&lt;p&gt;Thus, having a negative static pressure drop does not match with the fan curve, as the minimum value is zero. Additionally, having a negative total pressure drop has no sense for this system (as far as I undersand).&lt;br&gt;&lt;br&gt;Could you please help with this matter regarding the results I got and the proper way of evaluating fans in discovery?&lt;\/p&gt;&lt;p&gt;Add images to show the model.&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/06-11-2024-1730886795-mceclip0.png\" width=\"1408\" height=\"597\" \/>&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\/2024\/11\/06-11-2024-1730886815-mceclip1.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\/2024\/11\/06-11-2024-1730886830-mceclip2.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\/2024\/11\/06-11-2024-1730886838-mceclip3.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-392932","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":["83.48.41.192"],"_btv_view_count":["488"],"_bbp_topic_status":["unanswered"],"_bbp_subscription":["3452"],"_bbp_topic_id":["392932"],"_bbp_forum_id":["27789"],"_bbp_engagement":["3452","36513"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["392934"],"_bbp_last_active_id":["392934"],"_bbp_last_active_time":["2024-11-06 10:14:25"],"_bbp_notification_enabled":["486292"]},"test":"a-montesblowind-es"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/392932","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\/392932\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=392932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}