{"id":246102,"date":"2023-01-10T18:57:20","date_gmt":"2023-01-10T18:57:20","guid":{"rendered":"\/forum\/forums\/topic\/measurement-of-static-and-total-pressure\/"},"modified":"2023-01-10T18:57:20","modified_gmt":"2023-01-10T18:57:20","slug":"measurement-of-static-and-total-pressure","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/measurement-of-static-and-total-pressure\/","title":{"rendered":"Measurement of static and total pressure"},"content":{"rendered":"<p>Hello, in CFX, for my geometry (which is a pipe), I assigned a &#8216;Reference pressure&#8217; of 20 psig as &#8216;Total Pressure&#8217; at the inlet. For the outlet, I assigned&nbsp; &#8216;Opening&#8217; as type of boundary condition and assigned 0 psig as &#8216;Reference pressure&#8217;. I then ran the simulation. Although the x,y and z momentum residuals oscillate around 0.0001, the mass residual oscillates around 0.001 after 10000 interations. Nevertheless, I stopped the simulation and measured the total pressure and static pressure at the inlet which were 19.94 psig and 16.09 psig respectively. Since I am assuming that the values of both the pressures should be the same at the inlet, I am wondering whether it is because of the fact that the residual value is not small enough. It would be great to have some insight on this.<\/p>\n","protected":false},"template":"","class_list":["post-246102","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["8251","22555"],"_bbp_author_ip":["96.7.74.191"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["420"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["246102"],"_bbp_forum_id":["27792"],"_bbp_engagement":["8251","22555"],"_bbp_voice_count":["2"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["246755"],"_bbp_last_active_id":["246755"],"_bbp_last_active_time":["2023-01-17 14:02:50"]},"test":"ahkingsbury-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/246102","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\/246102\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=246102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}