{"id":375312,"date":"2024-08-02T16:41:48","date_gmt":"2024-08-02T16:41:48","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/battery-simulation-cannot-access-user-defined-scalar-uds-diffusivity\/"},"modified":"2024-08-02T16:41:48","modified_gmt":"2024-08-02T16:41:48","slug":"battery-simulation-cannot-access-user-defined-scalar-uds-diffusivity","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/battery-simulation-cannot-access-user-defined-scalar-uds-diffusivity\/","title":{"rendered":"Battery Simulation \u2013 Cannot access User-defined scalar (UDS) diffusivity"},"content":{"rendered":"<p>Hello, I am using Ansys FLUENT to simulate a battery but my cell is not giving me accurate temperature data. I found a tutorial on constructing a cell on YouTube: &nbsp;<a title=\"Li-Ion Battery Simulation Using MSMD Model in Ansys-Part-4\" href=\"https:\/\/www.youtube.com\/watch?v=tg8wHYQMtGE&amp;t=376s\">https:\/\/www.youtube.com\/watch?v=tg8wHYQMtGE&amp;t=376s<\/a> but there are specific steps I am unable to replicate.<\/p>\n<p>My main question is trying to access the <strong>UDS diffusivity (kg\/m-s)<\/strong> tab when I am assigning materials in the Create\/edit dialog box:&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" title=\"Tutorial box\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/02-08-2024-1722616089-Tutorial Box .png\" alt=\"\" width=\"413\" height=\"250\"> &nbsp; &nbsp; &nbsp;<img loading=\"lazy\" decoding=\"async\" title=\"Test box \" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/02-08-2024-1722616148-Tested Box .png\" alt=\"\" width=\"421\" height=\"256\">&nbsp;<\/p>\n<p>The first picture is the tutorial step and the 2nd Picture is my repeated step.&nbsp;<\/p>\n<p>&nbsp;I don&#8217;t understand what I am doing wrong. I found that if you change the material&#8217;s type to &#8220;mixture,&#8221; it would make the UDS tab accessible from a different post. But my only options are solid or fluid. Here is the link: &nbsp;<a title=\"UDS Diffusivity Not Appearing in Material Properties\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/uds-diffusivity-not-appearing-in-material-properties\/\">https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/uds-diffusivity-not-appearing-in-material-properties\/<\/a><\/p>\n<p>The resulting data: (1st picture) Tutorial&#8217;s results, (2nd picture) My results&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" title=\"Tutorial \" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/02-08-2024-1722616574-Tutorial temp data080224.png\" alt=\"\" width=\"426\" height=\"183\"> &nbsp; &nbsp;<img loading=\"lazy\" decoding=\"async\" title=\"my results \" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/08\/02-08-2024-1722616607-Tested_temp080224.png\" alt=\"\" width=\"377\" height=\"238\"><\/p>\n<p>Any feedback is welcomed. Thank you.&nbsp;<\/p>\n<p>Also, when choosing the model\/module, I didn&#8217;t have an MSMD battery or &#8220;dual potential&#8221; battery, only a regular battery model.&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-375312","topic","type-topic","status-publish","hentry","topic-tag-battery-simulation","topic-tag-fluent-uds"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["180296","5976"],"_bbp_author_ip":["71.246.224.253"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["709"],"_bbp_topic_status":["unanswered"],"_bbp_notification_enabled":["180296","180296","180296","180296","180296","180296","180296","180296","180296","180296","180296","180296"],"_bbp_topic_id":["375312"],"_bbp_forum_id":["27815"],"_bbp_engagement":["5976","180296"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["381642"],"_bbp_last_active_id":["381642"],"_bbp_last_active_time":["2024-09-05 13:16:35"]},"test":"lt0arc85"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/375312","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\/375312\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=375312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}