{"id":33903,"date":"2019-03-13T09:34:36","date_gmt":"2019-03-13T09:34:36","guid":{"rendered":"\/forum\/forums\/topic\/cfd-analysis-of-a-3d-centrifugal-blower\/"},"modified":"2019-03-13T09:34:36","modified_gmt":"2019-03-13T09:34:36","slug":"cfd-analysis-of-a-3d-centrifugal-blower","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cfd-analysis-of-a-3d-centrifugal-blower\/","title":{"rendered":"CFD Analysis of a 3D Centrifugal blower"},"content":{"rendered":"<p>Hi<\/p>\n<p><\/p>\n<p>I am doing a academic project on validation of Centrifugal blower CFD analysis with the experimental data. Here my objective is to match the performance curve (<strong>Static pressure versus Volume flow rate<\/strong>) obtained from CFD analysis with that of experimental data.<\/p>\n<p><\/p>\n<p>I am using <strong>CFX<\/strong> solver, <strong>steady state<\/strong> analysis and <strong>SST<\/strong> turbulence model, with pressure inlet (Total pressure) and pressure outlet (Average static pressure) condition and as my interest here is to obtain the volume flow rate.<\/p>\n<p><\/p>\n<p>I have run simulations at different outlet average static pressure conditions, and observed that the CFD is under-predicting the flow at the higher static pressures. The difference between the experimental and CFD performance curve is around <strong>20%.<\/strong>&nbsp;<\/p>\n<p><\/p>\n<p>How can i reduce this gap?<\/p>\n<p><\/p>\n<p>Would you suggest me to go with a different solver as well as a different Turbulence model?<\/p>\n<p><\/p>\n<p>Thanks&nbsp;<\/p>\n<p><\/p>\n<p>Prathik<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-33903","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["6075"],"_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":["0","0","0","0","0"],"_btv_view_count":["1253"],"_bbp_subscription":["239385"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["33903"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","7915","163419"],"_bbp_voice_count":["3"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["81590"],"_bbp_last_active_id":["81590"],"_bbp_last_active_time":["2019-03-28 18:10:14"]},"test":"prathikshetty"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/33903","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\/33903\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=33903"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}