{"id":32004,"date":"2018-12-07T14:19:04","date_gmt":"2018-12-07T14:19:04","guid":{"rendered":"\/forum\/forums\/topic\/reversed-flow-in-faces-of-pressure-outlet\/"},"modified":"2018-12-07T14:19:04","modified_gmt":"2018-12-07T14:19:04","slug":"reversed-flow-in-faces-of-pressure-outlet","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/reversed-flow-in-faces-of-pressure-outlet\/","title":{"rendered":"&#8220;reversed flow in ### faces of pressure outlet&#8221;"},"content":{"rendered":"<p>Hi<\/p>\n<p><\/p>\n<p>I&#8217;m trying to simulate an horizontal rotating disk on which will flow water, I have made the fluid domain and the mesh.<\/p>\n<p><\/p>\n<p>For the solution I&#8217;m using VOF model without change and the k-epsilon RNG with swirl flow added. I have made the mesh that have<\/p>\n<p><\/p>\n<p>minimum orthogonal quality equal to 0.7 but i&#8217;m having problem because I have the message &#8220;reversed flow in ### faces on pressure<\/p>\n<p><\/p>\n<p>outlet&#8221;. For some iteration it converge at 1e-3 and than it stop converging as the number of faces on which the flow is reversed as grown<\/p>\n<p><\/p>\n<p>up. I&#8217;m using time step between 1e-3 and 1e-6 with Curant number equal to 1.5.<\/p>\n<p><\/p>\n<p>1) How can I solve the reversed flow problem?<\/p>\n<p><\/p>\n<p>2)How can I improve the mesh for the cylindrical geometry?<\/p>\n<p><\/p>\n<p>3)Are the models rigth for what I want to simulate?<\/p>\n","protected":false},"template":"","class_list":["post-32004","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["4176"],"_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":["8582"],"_bbp_subscription":["237959"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["32004"],"_bbp_forum_id":["27792"],"_bbp_engagement":["62","199","160610"],"_bbp_voice_count":["3"],"_bbp_reply_count":["12"],"_bbp_last_reply_id":["72437"],"_bbp_last_active_id":["72437"],"_bbp_last_active_time":["2018-12-14 17:55:34"]},"test":"lucaavv"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/32004","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\/32004\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=32004"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}