{"id":443361,"date":"2025-10-08T23:26:07","date_gmt":"2025-10-08T23:26:07","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/incorrect-results-from-x-and-y-velocity-components-in-terms-of-angle-of-attack\/"},"modified":"2025-10-08T23:26:07","modified_gmt":"2025-10-08T23:26:07","slug":"incorrect-results-from-x-and-y-velocity-components-in-terms-of-angle-of-attack","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/incorrect-results-from-x-and-y-velocity-components-in-terms-of-angle-of-attack\/","title":{"rendered":"Incorrect Results from x and y velocity components in terms of Angle of attack"},"content":{"rendered":"<p>&lt;p&gt;When I rotate the aerofoil in 2D simulation and give inlet velocity in just x axis, the lift and drag forces are coming correct.&lt;br&gt;&lt;br&gt;However, if I leave the aerofoil at 0 degree AOA, and change the velocity into x and y component through cos and sin (AOA), the results are not coming correct.&lt;br&gt;&lt;br&gt;I have tried meshing in C type, but still cant figure out where is the problem, I mean dont understand why my x and y component velocities are giving wrong results. I have been trying since 2 months but couldnt figure out. I hope if some one can guide me.&lt;br&gt;&lt;br&gt;Thanks&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-443361","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["443361"],"_bbp_subscription":["597457","34559"],"_bbp_author_ip":["161.112.34.136"],"_bbp_last_reply_id":["443391"],"_bbp_last_active_id":["443391"],"_bbp_last_active_time":["2025-10-09 09:21:23"],"_bbp_reply_count":["3"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["597457","34559"],"_btv_view_count":["317"],"_bbp_topic_status":["unanswered"]},"test":"muhammadfaraz-mahmoodhud-ac-uk"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/443361","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\/443361\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=443361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}