{"id":158543,"date":"2022-06-06T10:32:56","date_gmt":"2022-06-06T10:32:56","guid":{"rendered":"\/knowledge\/forums\/topic\/how-to-change-the-direction-of-the-normal-vector-of-the-internal-face\/"},"modified":"2022-06-06T10:32:56","modified_gmt":"2022-06-06T10:32:56","slug":"how-to-change-the-direction-of-the-normal-vector-of-the-internal-face","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-to-change-the-direction-of-the-normal-vector-of-the-internal-face\/","title":{"rendered":"How to Change the Direction of the Normal Vector of the Internal Face?"},"content":{"rendered":"<p>To increase the degrees of freedom in post-processing, you may want to reverse the direction of the normal vector. A feature called Flip Normals can be used in Fluent Meshing. In FLUENT, it is possible to align normal vectors of internal faces, such as the interior, to a certain direction as required. However, we cannot decide which direction the normal vector can take. In that case, we will use Fluent Meshing&#8217;s Flip Normals function. <br \/>First, confirm the direction of the normal vector. <br \/>Next, go to the Boundary > Manage&#8230; and enter the following settings. <br \/>Options: select Flip Normals Face Zones: select the applicable internal face <br \/>Click Apply and check if the direction of the normal vector has reversed. <br \/>If there is no problem, save the mesh file. If the boundary conditions etc. have already been set, copy the settings.<\/p>\n","protected":false},"template":"","class_list":["post-158543","topic","type-topic","status-publish","hentry","topic-tag-ansys-fluent","topic-tag-direction","topic-tag-normal-vector"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["06-06-2022 20:20"],"_bbp_forum_id":["153047"],"_btv_view_count":["9832"],"_bbp_likes_count":["1"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/158543","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\/158543\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=158543"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}