{"id":242801,"date":"2022-12-02T17:39:51","date_gmt":"2022-12-02T17:39:51","guid":{"rendered":"\/forum\/forums\/topic\/fluent-multiphase-air-and-water-flow-in-a-straight-pipe\/"},"modified":"2022-12-02T17:39:51","modified_gmt":"2022-12-02T17:39:51","slug":"fluent-multiphase-air-and-water-flow-in-a-straight-pipe","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluent-multiphase-air-and-water-flow-in-a-straight-pipe\/","title":{"rendered":"Fluent: Multiphase (air and water) flow in a straight pipe"},"content":{"rendered":"<p>I am trying to simulate a multiphase flow in a straight section of pipe. The end goal is to see the visual flow topology (volume fraction of air phase in water). The air volume fraction at the inlet is 1\/3. I have used the transient solver and the mixture model but when I view the contour of the air volume fraction, it appears to be uniform (1\/3) across the pipe. I expected it to have contours with regions in the pipe ranging from 0 (no air) to 1 as shown below:<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2022\/12\/02-12-2022-1670002556-blobid0.jpg\" alt=\"a) Volume fraction of bubbles on the pipe wall. (b) Number of bubbles... |  Download Scientific Diagram\"><\/p>\n<p>Here is what I get below:<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2022\/12\/02-12-2022-1670002675-mceclip0.png\"><\/p>\n<p>I&#8217;d really appreciate some help on this issue.<\/p>\n","protected":false},"template":"","class_list":["post-242801","topic","type-topic","status-closed","hentry","topic-tag-fluent-cfd-ansys-1","topic-tag-multiphaseudfevaporationdpmspeciestransportdefinesourcesourcetermeulerianlagrangian-1","topic-tag-ansys-cfx"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["130754","15180","199"],"_bbp_author_ip":["96.7.74.151"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["1542"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["242801"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","15180","130754"],"_bbp_voice_count":["3"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["243296"],"_bbp_last_active_id":["243296"],"_bbp_last_active_time":["2022-12-07 18:55:36"]},"test":"esivueeshilamacmail-carleton-ca"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/242801","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\/242801\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=242801"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}