{"id":305662,"date":"2023-09-09T18:15:47","date_gmt":"2023-09-09T18:15:47","guid":{"rendered":"\/forum\/forums\/topic\/solving-custom-transport-equations\/"},"modified":"2023-09-09T18:15:47","modified_gmt":"2023-09-09T18:15:47","slug":"solving-custom-transport-equations","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/solving-custom-transport-equations\/","title":{"rendered":"Solving custom transport equations"},"content":{"rendered":"

Hello!<\/p>\n

I am looking to solve the following transport equation:<\/p>\n

<\/p>\n

it’s a fluid phase mass balance used in packed beds. Anyway, since I will be defining a custom source term, I suppose fluent would use the transport equation for the UDS, in that case I noticed that having a custom UDS unlocks the “UDS diffusivity” option in the materials tab, but it’s units are kg\/ms, however, the units of the diffusion coefficient in my transport term are m2\/s. How do I define a proper diffusivity coefficient in my case?<\/p>\n

Moreover, I have a porous zone in my model and I need to change its density for \\rho_p in my transport equation, is that possible?<\/p>\n

Thank you for the help!<\/p>\n","protected":false},"template":"","class_list":["post-305662","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["17976","199"],"_bbp_author_ip":["23.206.193.146"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["825"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["305662"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","17976"],"_bbp_voice_count":["2"],"_bbp_reply_count":["8"],"_bbp_last_reply_id":["309026"],"_bbp_last_active_id":["309026"],"_bbp_last_active_time":["2023-09-27 11:14:14"]},"test":"khuzaim-ranawadiaua-pt"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/305662","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\/305662\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=305662"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}