{"id":344852,"date":"2024-01-16T05:58:37","date_gmt":"2024-01-16T05:58:37","guid":{"rendered":"\/forum\/forums\/topic\/error-in-momentum-source-due-to-buoyancy-force-term\/"},"modified":"2024-01-17T08:53:46","modified_gmt":"2024-01-17T08:53:46","slug":"error-in-momentum-source-due-to-buoyancy-force-term","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/error-in-momentum-source-due-to-buoyancy-force-term\/","title":{"rendered":"Error in Momentum source due to buoyancy force term"},"content":{"rendered":"<p class=\"MsoNormal\"><span lang=\"EN-GB\">Hello,<\/span><\/p>\n<p class=\"MsoNormal\"><span lang=\"EN-GB\">I have a small problem to implement a buoyancy force term to the z momentum.<\/span><\/p>\n<p class=\"MsoNormal\"><span lang=\"EN-GB\">I&rsquo;m modelling laser melting. The buoyancy model is activated.<\/span><\/p>\n<p class=\"MsoNormal\"><!-- [if gte vml 1]&gt;--> <!-- [if !vml]--><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/01\/16-01-2024-1705384499-1.png\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/01\/16-01-2024-1705384499-1.png\" alt=\"\"><\/a><br \/><!--[endif]--><\/p>\n<p class=\"MsoNormal\"><span lang=\"EN-GB\">I&#8217;m facing problems to implement a buoyancy force term to the z momentum.<\/span><\/p>\n<p class=\"MsoNormal\"><span lang=\"EN-GB\"><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/01\/16-01-2024-1705384541-2.png\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/01\/16-01-2024-1705384541-2.png\" alt=\"\"><\/a><\/span><\/p>\n<p class=\"MsoNormal\"><span lang=\"EN-GB\">There are three-momentum source to freeze the Fluid below a certain temperature to achieve material melting due to laser heat source and they are working just fine, without a buoyancy force term Fb.&nbsp;<\/span><\/p>\n<p class=\"MsoNormal\"><span lang=\"EN-GB\">If I run the case with the Fb term, which is defined as follows, an error is happening.<\/span><\/p>\n<p class=\"MsoNormal\"><!-- [if gte vml 1]&gt;--> <!-- [if !vml]--><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/01\/16-01-2024-1705384582-3.png\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/01\/16-01-2024-1705384582-3.png\" alt=\"\"><\/a><!--[endif]--><\/p>\n<p class=\"MsoNormal\"><span lang=\"EN-GB\">I plotted the CEL expression in CFX pre over the whole possible data range, without any error.<\/span><\/p>\n<p class=\"MsoNormal\"><span lang=\"EN-GB\">Everything in the equation is defined, but I get still this error:<\/span><\/p>\n<p class=\"MsoNormal\"><!-- [if gte vml 1]&gt;--> <!-- [if !vml]--><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/01\/16-01-2024-1705384622-4.png\"><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/01\/16-01-2024-1705384622-4.png\" alt=\"\"><\/a><br \/><!--[endif]--><\/p>\n<p class=\"MsoNormal\"><span lang=\"EN-GB\">I don&rsquo;t understand why the error is happening. I don&rsquo;t see the error.<\/span><\/p>\n<p class=\"MsoNormal\"><span lang=\"EN-GB\">&nbsp;<\/span><\/p>\n<p class=\"MsoNormal\"><span lang=\"EN-GB\">With best regards<\/span><\/p>\n<p class=\"MsoNormal\"><span lang=\"EN-GB\">Steffen B<\/span><\/p>\n","protected":false},"template":"","class_list":["post-344852","topic","type-topic","status-closed","hentry","topic-tag-ansys-cfx","topic-tag-buoyancy"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["2231","68667"],"_bbp_author_ip":["23.206.193.41"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_bbp_likes_count":["1"],"_btv_view_count":["319"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1705481275:201008"],"_bbp_topic_id":["344852"],"_bbp_forum_id":["27792"],"_bbp_engagement":["2231","68667"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["345239"],"_bbp_last_active_id":["345239"],"_bbp_last_active_time":["2024-01-17 23:25:12"]},"test":"steffenbriergmx-de"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/344852","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":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/344852\/revisions"}],"predecessor-version":[{"id":345055,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/344852\/revisions\/345055"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=344852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}