{"id":161940,"date":"2021-09-04T07:40:45","date_gmt":"2021-09-04T07:40:45","guid":{"rendered":"\/forum\/forums\/topic\/calculating-entrance-length-in-the-fully-developed-turbulent-flow-in-a-long-pipe-3d\/"},"modified":"2021-09-16T04:43:49","modified_gmt":"2021-09-16T04:43:49","slug":"calculating-entrance-length-in-the-fully-developed-turbulent-flow-in-a-long-pipe-3d","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculating-entrance-length-in-the-fully-developed-turbulent-flow-in-a-long-pipe-3d\/","title":{"rendered":"Calculating entrance length in the fully developed turbulent flow in a long pipe &#8211; 3D"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>Simulating a three-dimensional turbulent flow in a circular pipe whose diameter and length are 0.16 meters and 10 meters respectively. The Reynolds number is in order of 10^5. Here the aim is to find the entrance length for a given pipe. <\/p>\n<p>Models used in fluent: k-epsilon, RNG, and standard wall functions.<\/p>\n<p>Boundary&nbsp;conditions: Inlet &#8211;&gt; 0 Pa (gauge pressure), and outlet &#8211;&gt; -27.7 Pa.<\/p>\n<p>Wall y+ plus avearge value:&nbsp; between 5 to 10<\/p>\n<p>Velocity contours are plotted at the symmetrical plane of the pipe, see figure 1. Velocity across the flow for regular intervals of length from upstream of the pipe is plotted in figure 2. In figure 3, shows the close view of figure 2, shown the maximum velocities regions away from walls.<\/p>\n<div class=\"embedExternal embedImage\">\n<div class=\"embedExternal-content\">\n<a class=\"embedImage-link\" href=\"\/forum\/wp-content\/uploads\/forum-uploads\/695\/30BM5MZT3M6A.jpg\" rel=\"nofollow noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" class=\"embedImage-img\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/695\/30BM5MZT3M6A.jpg\" alt=\"Picture1.png.jpg\" \/><br \/>\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-161940","topic","type-topic","status-closed","hentry","topic-tag-entrancelength-1","topic-tag-fullydevelopedturbulentflow-1","topic-tag-pipe-flow"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_old_reply_author_name_id":["Anonymous"],"_bbp_old_is_reply_anonymous_id":["false"],"_btv_view_count":["4064"],"_bbp_likes_count":["0"],"_bbp_subscription":["254338"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["161940"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","191131","210418"],"_bbp_voice_count":["3"],"_bbp_reply_count":["25"],"_bbp_last_reply_id":["191006"],"_bbp_last_active_id":["191006"],"_bbp_last_active_time":["2021-09-16 04:43:49"]},"test":"thirumoorthymech-iitd-ac-in"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/161940","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\/161940\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=161940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}