{"id":28539,"date":"2018-01-08T11:16:15","date_gmt":"2018-01-08T11:16:15","guid":{"rendered":"\/forum\/forums\/topic\/ansys-fluent-vof-on-moving-mesh\/"},"modified":"2018-01-08T11:16:15","modified_gmt":"2018-01-08T11:16:15","slug":"ansys-fluent-vof-on-moving-mesh","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-fluent-vof-on-moving-mesh\/","title":{"rendered":"ANSYS-FLUENT VOF on Moving MESH"},"content":{"rendered":"<p>Hi&#8230;I am trying to simulate the motion of a water(bottle) rocket caused by its thrust(ejecting water&amp;air) using explicit 2 phase VOF ,Dynamic&nbsp; Mesh and 6 DOF UDF.Without 6 DOF(static simulation), everything runs smoothly but when 6 DOF is checked,pressure inside bottle becomes very high and both bottle and water appears static and finally AMG solver diverges.When I use air only everything also runs smoothly as expected(bottle shoots up)..What could the problem be !!!..any help would be appreciated.<\/p>\n","protected":false},"template":"","class_list":["post-28539","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["706"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0","0","0","0"],"_btv_view_count":["314"],"_bbp_subscription":["235613"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["28539"],"_bbp_forum_id":["27792"],"_bbp_engagement":["154844","155416"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["56055"],"_bbp_last_active_id":["56055"],"_bbp_last_active_time":["2018-01-08 18:53:28"]},"test":"zafrul"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/28539","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\/28539\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=28539"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}