{"id":453750,"date":"2026-03-04T21:04:43","date_gmt":"2026-03-04T21:04:43","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/inlet-behaving-like-waterfallhow-to-fix-this\/"},"modified":"2026-03-04T21:04:43","modified_gmt":"2026-03-04T21:04:43","slug":"inlet-behaving-like-waterfallhow-to-fix-this","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/inlet-behaving-like-waterfallhow-to-fix-this\/","title":{"rendered":"Inlet Behaving like waterfall,How to fix this ?"},"content":{"rendered":"<p>&lt;p&gt;I am trying to replicate half filled pipe. I have flow rate of 40 l\/s.&nbsp;&lt;\/p&gt;&lt;p&gt;SImualtion type &#8211; Transient , VOF( Open channel) , Primary- AIr, Secondary &#8211; Water. For trial i am considering Laminar flow.&lt;\/p&gt;&lt;p&gt;I defined free surface and bottom in Inlet BC.&nbsp;&lt;\/p&gt;&lt;p&gt;Problem I am facing is my inlet is behaving like a waterfall. How to fix this&nbsp; ?&nbsp;&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/03\/04-03-2026-1772658271-mceclip0.png\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-453750","topic","type-topic","status-publish","hentry","topic-tag-fluent","topic-tag-transient","topic-tag-vof"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["453750"],"_bbp_subscription":["582925","199"],"_bbp_author_ip":["24.204.211.122"],"_bbp_last_reply_id":["453782"],"_bbp_last_active_id":["453782"],"_bbp_last_active_time":["2026-03-05 14:07:40"],"_bbp_reply_count":["3"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["582925","199"],"_btv_view_count":["67"],"_bbp_topic_status":["unanswered"]},"test":"mshreepalfergusonconsulting-ca"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/453750","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\/453750\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=453750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}