{"id":311368,"date":"2023-10-13T08:12:02","date_gmt":"2023-10-13T08:12:02","guid":{"rendered":"\/forum\/forums\/topic\/discontinuity-of-velocity-between-rotating-and-stationary-domains\/"},"modified":"2023-10-13T08:12:02","modified_gmt":"2023-10-13T08:12:02","slug":"discontinuity-of-velocity-between-rotating-and-stationary-domains","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/discontinuity-of-velocity-between-rotating-and-stationary-domains\/","title":{"rendered":"Discontinuity of velocity between rotating and stationary domains"},"content":{"rendered":"<p>Hi, I am trying to simulate a hydro turbine in a water flow using Fluent. I followed some tutorials online and made two domains: rotating (with boolean turbine) and stationary domain. The rotating domain has &#8216;Frame Motion&#8217;, and the walls are &#8216;stationary wall&#8217; with &#8216;relative motion to adjacent cell zone&#8217;. The inlet is velocity inlet with 2.5m\/s water flow and outlet is pressure outlet with gauge pressure set to 0Pa.<\/p>\n<p>When I ran the simulation, I got this contour that shows discontinuity of velocity between stationary and rotating domain. The velocity streamlines also stop when it touches the turbine, which I suspect is due to the discontinuity. Can anyone help me with this problem?<\/p>\n<p>I attach some photos to hopefully help you understand what I describe. Thank you.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/10\/13-10-2023-1697184444-mceclip0.png\" width=\"785\" height=\"529\"><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/10\/13-10-2023-1697184574-mceclip1.png\" width=\"786\" height=\"528\"><\/p>\n","protected":false},"template":"","class_list":["post-311368","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["295587","18096"],"_bbp_author_ip":["96.7.218.215"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["554"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["311368"],"_bbp_forum_id":["27792"],"_bbp_engagement":["18096","295587"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["312037"],"_bbp_last_active_id":["312037"],"_bbp_last_active_time":["2023-10-18 11:23:27"]},"test":"e0550465u-nus-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/311368","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\/311368\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=311368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}