{"id":35622,"date":"2019-05-28T10:49:42","date_gmt":"2019-05-28T10:49:42","guid":{"rendered":"\/forum\/forums\/topic\/ansys-fluent-sst-k-w-model-setup\/"},"modified":"2019-05-28T10:49:42","modified_gmt":"2019-05-28T10:49:42","slug":"ansys-fluent-sst-k-w-model-setup","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-fluent-sst-k-w-model-setup\/","title":{"rendered":"ANSYS Fluent SST K-w model setup"},"content":{"rendered":"<p>Hi,<\/p>\n<p><\/p>\n<p>I am doing a project in which I need to analyze some airfoils at high speed (M 0.88) at a high altitude (51000 ft). I wanted to compare the results between the Spalart-Allmaras model and the SST k-w, which, if I understood correctly, are the right models for high-speed external flows. I am using ANSYS 2019 R1.<\/p>\n<p><\/p>\n<p>I have had no problem setting up the Spalart-Allmaras solver and the results I get are coherent. But when it comes to the SST k-w I am not able to prevent the solution from entering in ressonance, it looks like the averaged value would be correct but the solution does not converge. What are the setup options I should use for these transonic simulations?<\/p>\n<p><\/p>\n<p>Thanks in advance,<\/p>\n<p><\/p>\n<p>Pol<\/p>\n<p><\/p>\n<p>EDIT: I am analyzing a NACA 0012 at 0&ordm;. I am expecting a CD of around 0.08 to 0.1 (due to the shock waves) and a CL value of 0, as it is a symmetrical airfoil at 0&ordm;.<\/p>\n","protected":false},"template":"","class_list":["post-35622","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["7794"],"_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"],"_btv_view_count":["5741"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["35622"],"_bbp_forum_id":["27792"],"_bbp_engagement":["25","22555","165317","171613"],"_bbp_voice_count":["4"],"_bbp_reply_count":["11"],"_bbp_last_reply_id":["101136"],"_bbp_last_active_id":["101136"],"_bbp_last_active_time":["2019-12-18 14:28:39"]},"test":"polmartorell"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/35622","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\/35622\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=35622"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}