{"id":166042,"date":"2023-03-17T13:10:55","date_gmt":"2023-03-17T13:10:55","guid":{"rendered":"\/knowledge\/forums\/topic\/influence-of-polyhedral-mesh-on-gradient-calculation\/"},"modified":"2023-07-31T12:27:12","modified_gmt":"2023-07-31T12:27:12","slug":"influence-of-polyhedral-mesh-on-gradient-calculation","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/influence-of-polyhedral-mesh-on-gradient-calculation\/","title":{"rendered":"Influence of polyhedral mesh on gradient calculation."},"content":{"rendered":"<p>ANSYS Fluent has the capability to convert globally or locally the cells of a pre-existing grid into polyhedral cells.   The generation of polyhedral grids is now natively possible in ANSYS Fluent Meshing and is a valuable solution compared to a posteriori conversion.   Polyhedral are known to show some numerical properties due to lower cell count compared to tetraedral grid: &#8211; Less memory required &#8211; Faster time to obtain solution  Nevertheless, what is the impact of polyhedra on the calculation of gradients?  See attached document for further elements on this topic.<\/p>\n<p>Attachments:<br \/>\n1. <a href=https:\/\/ansys13.ansys.com\/KnowledgeArticles\/Phase-1\/2043021\/2043021_PolyMeshGradientCalculation.pdf>2043021_PolyMeshGradientCalculation.pdf<\/a><\/p>\n","protected":false},"template":"","class_list":["post-166042","topic","type-topic","status-publish","hentry","topic-tag-17-2","topic-tag-fluent","topic-tag-fluid-dynamics","topic-tag-general-fluent","topic-tag-pre-processing-meshing"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["3-15-2023  20:20:38"],"_bbp_forum_id":["27796"],"_bbp_author_ip":["23.56.168.180"],"_btv_view_count":["2989"],"siebel_km_number":["2043021"],"product_version":["17.2"],"km_published_date":["2016-08-26T14:08:07.000Z"],"family":["Fluid Dynamics"],"application_name":["FLUENT"]},"test":"solution"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/166042","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\/166042\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=166042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}