{"id":372608,"date":"2024-07-18T15:00:12","date_gmt":"2024-07-18T15:00:12","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/udfs-for-particle-re-suspension\/"},"modified":"2024-07-18T15:35:36","modified_gmt":"2024-07-18T15:35:36","slug":"udfs-for-particle-re-suspension","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/udfs-for-particle-re-suspension\/","title":{"rendered":"Udfs for particle re-suspension"},"content":{"rendered":"<p>Hello,<\/p>\n<p>&nbsp;<\/p>\n<p>I&#8217;m studying particle impinging a wall where the criteria for particle sticking to a wall is the moment (F*d) on each particle at the wall as a function of drag force and velocity of particle at contact.&nbsp;<\/p>\n<p>I see that I can use DEFINE_DPM_BC for this.<\/p>\n<p>&nbsp;<\/p>\n<p>Since I input a custom drag force model I would need DEFINE_DPM_DRAG, my question is about how I can import the drag force in this udf to my DEFINE_DPM_BC udf so I can calculate the moment on each particle at the wall.<\/p>\n<p>&nbsp;<\/p>\n<p>Is there a way I can use both of these udfs under the same header and make it a whole different udf with multiple macros?<\/p>\n<p>This whole criteria is for ansys to decide if the particles sticks or bounces off from the wall<\/p>\n<p>Thanks,<\/p>\n<p>Kiran<\/p>\n","protected":false},"template":"","class_list":["post-372608","topic","type-topic","status-closed","hentry","topic-tag-cfd-udf-fleunt","topic-tag-dpm-udfs","topic-tag-drag-force","topic-tag-moment-calculation"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["288381","199"],"_bbp_author_ip":["2607:fea8:7a61:4800:abd8:31cc:a4fe:94ad"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["157"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1721316717:288381"],"_bbp_topic_id":["372608"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","288381"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["372612"],"_bbp_last_active_id":["372612"],"_bbp_last_active_time":["2024-07-18 15:37:49"]},"test":"kiran-purushothamakeshavanontariotechu-net"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/372608","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\/372608\/revisions"}],"predecessor-version":[{"id":372611,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/372608\/revisions\/372611"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=372608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}