{"id":49098,"date":"2020-10-18T20:28:16","date_gmt":"2020-10-18T20:28:16","guid":{"rendered":"\/forum\/forums\/topic\/dpm-problem-with-system-coupling\/"},"modified":"2020-10-18T20:28:16","modified_gmt":"2020-10-18T20:28:16","slug":"dpm-problem-with-system-coupling","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/dpm-problem-with-system-coupling\/","title":{"rendered":"DPM problem with system coupling"},"content":{"rendered":"<p>Hi,I am doing fluid structure analysis with system coupling to study acoustophoretic phenomena. A piezoelectric layer vibrates  to generate acoustic waves that interact with dpm phase in a fluid. nMy analysis is divide in 2 parts:at first the piezo is off and the particles + fluid enter in the channel and the analysis is stopped. Then it is restarted  (from the last timestep of the prevoius analysis) switching on the piezo and changing the timestep.nAfter the first part, I checked if the particles enter in the channel, so I export the file from fluent to CFD post, and it was ok. At the end of the second part, I made the same thing (export file from fluent to cfd post) but the trajectories are completely different  with respect to the first part of the analysis and I don&#8217;t know why. Any help?n(Interaction with continuum phase is not activated and the tracking is steady)n<\/p>\n","protected":false},"template":"","class_list":["post-49098","topic","type-topic","status-closed","hentry","topic-tag-cfd-post","topic-tag-dpm","topic-tag-fluent","topic-tag-fluid-structure","topic-tag-system-coupling"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["21327"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":["??8h"],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["453"],"_bbp_subscription":["252012"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["49098"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","177875"],"_bbp_voice_count":["2"],"_bbp_reply_count":["18"],"_bbp_last_reply_id":["131287"],"_bbp_last_active_id":["131287"],"_bbp_last_active_time":["2020-10-27 11:06:27"]},"test":"luigi0"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/49098","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\/49098\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=49098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}