{"id":164590,"date":"2023-03-17T08:58:06","date_gmt":"2023-03-17T08:58:06","guid":{"rendered":"\/knowledge\/forums\/topic\/what-advection-and-transient-scheme-should-i-use-for-a-des-simulation\/"},"modified":"2023-07-31T12:25:52","modified_gmt":"2023-07-31T12:25:52","slug":"what-advection-and-transient-scheme-should-i-use-for-a-des-simulation","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-advection-and-transient-scheme-should-i-use-for-a-des-simulation\/","title":{"rendered":"What advection and transient scheme should I use for a DES simulation?"},"content":{"rendered":"<p>You should typically choose a &#8216;High Resolution&#8217; or &#8216;Specified Blend Factor&#8217; scheme for the advection, and the &#8216;Second Order Backward Euler&#8217; scheme for the transient discretization.  With this the solver will use the following:  &#8211; a &#8216;High Resolution&#8217; or &#8216;Specified Blend Factor&#8217; scheme for the momentum equations in the RANS region,   &#8211; a &#8216;Central Difference&#8217; scheme in the LES region.  &#8211; an upwind scheme for the turbulence equations everywhere  &#8211; a second order transient scheme on the momentum  &#8211; a first order transient on the turbulence model<\/p>\n","protected":false},"template":"","class_list":["post-164590","topic","type-topic","status-publish","hentry","topic-tag-4424","topic-tag-cfx","topic-tag-fluid-dynamics","topic-tag-general-cfx"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["3-15-2023  20:20:37"],"_bbp_forum_id":["27796"],"_bbp_author_ip":["23.56.168.180"],"_btv_view_count":["1188"],"siebel_km_number":["385267"],"product_version":["16"],"km_published_date":["2005-03-08T00:00:00.000Z"],"family":["Fluid Dynamics"],"application_name":["CFX"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/164590","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/164590\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=164590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}