{"id":179270,"date":"2023-08-25T12:16:11","date_gmt":"2023-08-25T12:16:11","guid":{"rendered":"\/knowledge\/forums\/topic\/how-can-i-use-fluent-meshing-to-create-a-smooth-tri-mesh-from-an-existing-quad-mesh-2\/"},"modified":"2023-08-25T12:16:11","modified_gmt":"2023-08-25T12:16:11","slug":"how-can-i-use-fluent-meshing-to-create-a-smooth-tri-mesh-from-an-existing-quad-mesh-2","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-can-i-use-fluent-meshing-to-create-a-smooth-tri-mesh-from-an-existing-quad-mesh-2\/","title":{"rendered":"How can I use Fluent Meshing to create a smooth tri mesh from an existing quad mesh?"},"content":{"rendered":"<p>When trying to create a new tri mesh on a surface, reusing parts of an existing quad mesh, we might experience some difficulties getting a smooth size transition between the 2 zones.  The usual methodology for enforcing a proper size transition is to remesh the &#8220;tri&#8221; zone with a &#8220;meshed&#8221; size function using an appropriate growth rate (e.g: 1.2, which is the default value), based on the adjacent zone  The tricky part is that, in this case, the adjacent part contains quads, and therefore cannot be used as a reference zone for the size function.  In order to work around this, take the feature edge surrounding the &#8220;quad&#8221; zone as the remeshing reference for the size function. This will lead to the desired smoothness in the mesh transition (see attached pictures for example) <\/p>\n<p>Attachments:<br \/>\n1. <a href=https:\/\/ansys13.ansys.com\/KnowledgeArticles\/Phase-3\/2051147\/1_Poor_transition.PNG>1_Poor_transition.PNG<\/a><br \/>\n2. <a href= https:\/\/ansys13.ansys.com\/KnowledgeArticles\/Phase-3\/2051147\/2_edge-based-remesh.png>2_edge-based-remesh.png<\/a><br \/>\n2. <a href= https:\/\/ansys13.ansys.com\/KnowledgeArticles\/Phase-3\/2051147\/3_Improved_result.PNG>3_Improved_result.PNG<\/a><\/p>\n","protected":false},"template":"","class_list":["post-179270","topic","type-topic","status-publish","hentry","topic-tag-18-2","topic-tag-fluent-meshing-tgrid","topic-tag-fluid-dynamics","topic-tag-pre-processing-geometry-meshing","topic-tag-surface-meshing","topic-tag-wrap-sewing-remeshing"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"siebel_km_number":["2051147"],"_bbp_last_active_time":["8\/25\/2023 20:20"],"_bbp_forum_id":["27796"],"_bbp_author_ip":["23.56.168.180"],"application_name":["FLUENT Meshing\/Tgrid"],"family":["Fluid Dynamics"],"km_published_date":["2017-08-28T00:00:00.000Z"],"product_version":["18"],"_btv_view_count":["1090"],"_edit_lock":["1705048231:80072"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/179270","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":1,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/179270\/revisions"}],"predecessor-version":[{"id":181300,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/179270\/revisions\/181300"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=179270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}