


{"id":43570,"date":"2020-05-04T05:30:57","date_gmt":"2020-05-04T05:30:57","guid":{"rendered":"\/forum\/forums\/topic\/wind-tunnel-simulation-varying-the-angle-of-attack\/"},"modified":"2020-05-04T05:30:57","modified_gmt":"2020-05-04T05:30:57","slug":"wind-tunnel-simulation-varying-the-angle-of-attack","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/wind-tunnel-simulation-varying-the-angle-of-attack\/","title":{"rendered":"Wind tunnel simulation; Varying the angle of attack"},"content":{"rendered":"<p><span style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\">Hi,<\/span><br style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\"><br style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\"><span style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\">I hope you all are doing good.<\/span><br style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\"><span style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\">I am trying to simulate the flow through a wind tunnel and measure the aerodynamic force coefficients of an airfoil placed at the test section of the wind tunnel. I need to do this at various angles of attack.<\/span><br style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\"><span style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\">I know that adjusting the flow direction (and keeping the airfoil horizontal) can do it (PFA pic1). But, this does not seem to be the right method for the simulation of the flow through the wind tunnel (PFA pic2), especially at higher angles of attack.<\/span><br style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\"><span style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\">Does anybody know how to adjust the angle of attack in the wind tunnel simulation&nbsp;<\/span><strong style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\">without remeshing<\/strong><span style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\">&nbsp;the geometry for each angle of attack?<\/span><br style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\"><span style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\">Do I need an overset mesh for this?<\/span><br style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\"><span style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\">Please let me know. Thanks in advance.<\/span><\/p>\n<p><\/p>\n<p><span style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/11d50837-e01d-487b-abd6-a91f004d66b5\/c2bcebdc-881e-4f68-a1ae-abb1005a9345_pic1.jpg?width=690&amp;upscale=false\" alt=\"Pic1\" width=\"289\" height=\"192\"><\/span><\/p>\n<p><\/p>\n<p><span style=\"color: #000000; font-family: verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif; font-size: 13.3333px; background-color: #f7f7f7;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/11d50837-e01d-487b-abd6-a91f004d66b5\/cec63977-bae4-4a2d-adc6-abb1005aca38_pic2.jpg?width=690&amp;upscale=false\" alt=\"Pic2\" width=\"291\" height=\"119\"><\/span><\/p>\n","protected":false},"template":"","class_list":["post-43570","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["15751"],"_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"],"_btv_view_count":["2991"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["43570"],"_bbp_forum_id":["27792"],"_bbp_engagement":["59","199","22555","157809","182271"],"_bbp_voice_count":["5"],"_bbp_reply_count":["10"],"_bbp_last_reply_id":["141517"],"_bbp_last_active_id":["141517"],"_bbp_last_active_time":["2021-02-08 10:56:10"]},"test":"hhk1992"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/43570","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\/43570\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=43570"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}