{"id":406915,"date":"2025-01-24T08:37:14","date_gmt":"2025-01-24T08:37:14","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluent-multiphase-different-bcs\/"},"modified":"2025-01-24T08:37:14","modified_gmt":"2025-01-24T08:37:14","slug":"fluent-multiphase-different-bcs","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluent-multiphase-different-bcs\/","title":{"rendered":"Fluent multiphase different BCs"},"content":{"rendered":"<p>&lt;p&gt;Dear,&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;I am modeling a wave-current interaction problem in an open channel, please see picture below defining my domain and the boundary locations. I have 3 questions, if you could please assist me with:&lt;\/p&gt;&lt;p&gt;1- At the <strong>outlet <\/strong>boundary location: I need to apply a velocity <strong>only at the water phase<\/strong>, not air. How is this possible?&lt;\/p&gt;&lt;p&gt;2- At the <strong>inlet <\/strong>boundary location: Similarly, I need to assign a wave BC <strong>only at the water phase<\/strong>, however, <strong>only for the first portion of the inlet<\/strong> specified a bit above the bed level up to the water free surface. Again how is it possible?&lt;\/p&gt;&lt;p&gt;3- At the <strong>inlet <\/strong>boundary location: Similarly, I need to assign a velocity <strong>only at the water phase<\/strong>, however, <strong>only for the second portion of the inlet<\/strong> marked close to the bed level. Which is the solution?&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/01\/24-01-2025-1737707643-WhatsApp Image 2025-01-24 at 09.25.46_c521d1dc.jpg\" alt=\"\" width=\"1061\" height=\"442\" \/>&lt;\/p&gt;&lt;p&gt;Thank you!&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-406915","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27796"],"_bbp_topic_id":["406915"],"_bbp_author_ip":["193.205.133.217"],"_bbp_last_reply_id":["407143"],"_bbp_last_active_id":["407143"],"_bbp_last_active_time":["2025-01-27 11:15:28"],"_bbp_reply_count":["3"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["1"],"_bbp_engagement":["79313"],"_btv_view_count":["160"],"_bbp_topic_status":["unanswered"],"_bbp_notification_enabled":["79313"],"_edit_lock":["1737718316:79313"],"_bbp_subscription":["79313"]},"test":"s-m-mousavipm-univpm-it"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/406915","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\/406915\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=406915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}