{"id":41023,"date":"2020-02-18T08:08:54","date_gmt":"2020-02-18T08:08:54","guid":{"rendered":"\/forum\/forums\/topic\/using-rsm-model-to-simulate-swirl-flow-in-pipe\/"},"modified":"2020-02-18T08:08:54","modified_gmt":"2020-02-18T08:08:54","slug":"using-rsm-model-to-simulate-swirl-flow-in-pipe","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/using-rsm-model-to-simulate-swirl-flow-in-pipe\/","title":{"rendered":"Using RSM model to simulate swirl flow in pipe"},"content":{"rendered":"<p>I am trying to simulate the highly swirl flow in confined tube using axi-symmetric swirl (2D geometry).&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;Version : 2019 R3,R2,R1 (all gives same)<\/p>\n<p><\/p>\n<p>Geometry : 150mm (dia)X 6145 mm(length) rectangle (axisymmetric cylinder)<\/p>\n<p><\/p>\n<p>Working fluid : Air<\/p>\n<p><\/p>\n<p>Model :&nbsp; RSM , stress-omega<\/p>\n<p><\/p>\n<p>solver : Pressure based<\/p>\n<p><\/p>\n<p>Type : Steady<\/p>\n<p><\/p>\n<p>scheme : SIMPLE for coupling , PRESTO for pressure , SOU&#8217;s for other<\/p>\n<p><\/p>\n<p>Reynolds no : 50 K<\/p>\n<p><\/p>\n<p>Inlet : Velocity profile (axial,radial, swirl)<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/0d040f12-2da4-4e73-b50d-aac1013da5a0\/9af45330-349c-4713-9fff-ab6500860c83_u.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/0d040f12-2da4-4e73-b50d-aac1013da5a0\/f59c96d1-04db-48dd-abcb-ab6500862a49_v.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/0d040f12-2da4-4e73-b50d-aac1013da5a0\/ad1a6383-f166-42b3-a1e8-ab6500864087_w.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n<p><\/p>\n<p>outlet : Pressure outlet ( Avg pressure = 0)<\/p>\n<p><\/p>\n<p>I am unable to get zero velocity at the axis when RSM is employed but this kind of problem is not there with other turbulence models. Please help.<\/p>\n","protected":false},"template":"","class_list":["post-41023","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["13203"],"_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"],"_btv_view_count":["815"],"_bbp_subscription":["242711"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["41023"],"_bbp_forum_id":["27792"],"_bbp_engagement":["62","199","22555","168265"],"_bbp_voice_count":["4"],"_bbp_reply_count":["31"],"_bbp_last_reply_id":["147745"],"_bbp_last_active_id":["147745"],"_bbp_last_active_time":["2021-03-23 17:23:01"]},"test":"kgpniko16"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/41023","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\/41023\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=41023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}