{"id":166920,"date":"2022-03-03T02:23:09","date_gmt":"2022-03-03T02:23:09","guid":{"rendered":"\/forum\/forums\/topic\/pressure-drop-fluctuates\/"},"modified":"2022-03-05T23:57:01","modified_gmt":"2022-03-05T23:57:01","slug":"pressure-drop-fluctuates","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/pressure-drop-fluctuates\/","title":{"rendered":"Pressure drop fluctuates"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Dear you,<\/p>\n<p>Now I am doing a steady state simulation in Fluent with pressure based solver.<\/p>\n<p>Boundary condition: <\/p>\n<p>Velocity inlet (Velocity 10 m\/s, Reynolds number 4000), pressure outlet, and other sides are periodic and symmerty.<\/p>\n<p>Mesh quality:<\/p>\n<p>Minimum orthogonoal 0.2.<\/p>\n<p> Turbulence model:<\/p>\n<p> RNG ke with enhanced wall treatment. <\/p>\n<p>Pressure drop is defined as:<\/p>\n<p>Static pressure of (the inlet &#8211; outlet).<\/p>\n<p><\/p>\n<\/p>\n<p>My question is:<\/p>\n<p>Why the pressure drop fluctates in a sinoidal pattern with in a range of 2 Pa, even the residuals of continuity and so on below 1e-5?<\/p>\n<p><\/p>\n<\/p>\n<p>BEST REGARDS<\/p>\n","protected":false},"template":"","class_list":["post-166920","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_btv_view_count":["253"],"_bbp_likes_count":["0"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["166920"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","5976","161458"],"_bbp_voice_count":["3"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["207200"],"_bbp_last_active_id":["207200"],"_bbp_last_active_time":["2022-03-05 23:57:01"]},"test":"btingthewind"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/166920","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\/166920\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=166920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}