{"id":168864,"date":"2022-04-25T12:54:34","date_gmt":"2022-04-25T12:54:34","guid":{"rendered":"\/forum\/forums\/topic\/thermal-nox-udf-help\/"},"modified":"2022-05-11T16:46:43","modified_gmt":"2022-05-11T16:46:43","slug":"thermal-nox-udf-help","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/thermal-nox-udf-help\/","title":{"rendered":"thermal NOx udf help"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>I am working on project where I want to update the thermal rate constants through a UDF function, and for a start, I&#039;m trying to replicate the standard model in fluent for the thermal NO formation. This is to ensure that my UDF works as intended.<\/p>\n<p>However, I run into problems with my current version of the UDF, as it does not give the same results or, in some cases, can&#039;t run at all (floating point and divergence).<\/p>\n<p>My current udf is based on previous version found online for a older version of the fluent software provided by Ansys: <a href=\"https:\/\/www.cfd-online.com\/Forums\/fluent\/44944-nox-udf.html\" rel=\"nofollow\">https:\/\/www.cfd-online.com\/Forums\/fluent\/44944-nox-udf.html<\/a><\/p>\n<p>Therefore, I&#039;m looking for a UDF that replicates NOx model exactly for a newer version of fluent or help with my existing code as attached to message. <\/p>\n<div data-embedjson=\"{&quot;url&quot;:&quot;\/forum\/wp-content\/uploads\/forum-uploads\/755\/VQ06CYGBMYDA.txt&quot;,&quot;name&quot;:&quot;thermalNO2022.txt&quot;,&quot;type&quot;:&quot;text\/plain&quot;,&quot;size&quot;:2694,&quot;embedType&quot;:&quot;file&quot;}\">\n<a href=\"\/forum\/wp-content\/uploads\/forum-uploads\/755\/VQ06CYGBMYDA.txt\" download aria-label=\"thermalNO2022.txt\"><br \/>\nthermalNO2022.txt<br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-168864","topic","type-topic","status-closed","hentry","topic-tag-fluent","topic-tag-fluent-post-processing","topic-tag-nox-emissions","topic-tag-pollution-model-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_btv_view_count":["473"],"_bbp_likes_count":["0"],"_bbp_subscription":["255949"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["168864"],"_bbp_forum_id":["27792"],"_bbp_engagement":["118","211303"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["223601"],"_bbp_last_active_id":["223601"],"_bbp_last_active_time":["2022-08-09 08:42:55"]},"test":"mabryskt-dtu-dk"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/168864","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\/168864\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=168864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}