{"id":288437,"date":"2023-06-13T09:15:07","date_gmt":"2023-06-13T09:15:07","guid":{"rendered":"\/forum\/forums\/topic\/question-about-central-differencing-scheme-in-fluent\/"},"modified":"2023-06-13T09:15:07","modified_gmt":"2023-06-13T09:15:07","slug":"question-about-central-differencing-scheme-in-fluent","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/question-about-central-differencing-scheme-in-fluent\/","title":{"rendered":"Question about central differencing scheme in Fluent"},"content":{"rendered":"<p>Hello,<\/p>\n<p>I all books about finite volume method it is said that the central differencing scheme is just the mean between the cells that share a face. However, in Ansys Fluernt there is another term that contains the gradients of the variables:<\/p>\n<p>https:\/\/ansyshelp.ansys.com\/account\/secured?returnurl=\/Views\/Secured\/corp\/v231\/en\/flu_th\/flu_th_SolveDiscretization_spatial.html?q=central%20differencing<\/p>\n<p>What is the purpose of adding this term? As far as I am concerned, the &#8220;standard&#8221; expression is also second-order acccurate.<\/p>\n<p>Thank you,<\/p>\n<p>Aitor<\/p>\n","protected":false},"template":"","class_list":["post-288437","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_oembed_4f4f2f7e2d177206428a65f6d98341d3":["{{unknown}}"],"_bbp_subscription":["191131","13659"],"_bbp_author_ip":["23.47.145.55"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["319"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["288437"],"_bbp_forum_id":["27792"],"_bbp_engagement":["13659","191131"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["288488"],"_bbp_last_active_id":["288488"],"_bbp_last_active_time":["2023-06-13 12:21:07"],"_oembed_d5510b4ae072b1f57581f9835bea10f1":["{{unknown}}"]},"test":"aitor-amatriaincern-ch"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/288437","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/288437\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=288437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}