{"id":157216,"date":"2022-06-06T08:33:08","date_gmt":"2022-06-06T08:33:08","guid":{"rendered":"\/knowledge\/forums\/topic\/what-is-the-default-wall-boundary-used-in-ansys-aim-when-stress-strain-model-is-set-to-inviscid-2\/"},"modified":"2022-06-06T08:33:08","modified_gmt":"2022-06-06T08:33:08","slug":"what-is-the-default-wall-boundary-used-in-ansys-aim-when-stress-strain-model-is-set-to-inviscid-2","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-is-the-default-wall-boundary-used-in-ansys-aim-when-stress-strain-model-is-set-to-inviscid-2\/","title":{"rendered":"What is the default wall boundary used in ANSYS AIM when Stress-strain model is set to inviscid?"},"content":{"rendered":"<p>A Viscous analysis involves a solution of the full Navier-Stokes equations whereas an Inviscid analysis ignores all viscous effects.  With the Inviscid option, the default wall boundary condition, even if it is not displayed, is free slip: -Zero wall shear stress -Zero normal wall velocity: no penetration -Non-zero tangential velocity as the velocity of the fluid near the wall is not retarded by wall friction effects.  <br \/>Keywords: AIM, Inviscid, Stress-strain<\/p>\n","protected":false},"template":"","class_list":["post-157216","topic","type-topic","status-publish","hentry","topic-tag-ansys-aim","topic-tag-boundary-conditions"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["06-06-2022 20:20"],"_bbp_forum_id":["27796"],"_btv_view_count":["346"],"_bbp_likes_count":["0"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/157216","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\/157216\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=157216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}