{"id":395533,"date":"2024-11-27T11:59:51","date_gmt":"2024-11-27T11:59:51","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculated-static-pressure-node-values-do-not-match-the-set-boundary-value\/"},"modified":"2024-11-27T11:59:51","modified_gmt":"2024-11-27T11:59:51","slug":"calculated-static-pressure-node-values-do-not-match-the-set-boundary-value","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculated-static-pressure-node-values-do-not-match-the-set-boundary-value\/","title":{"rendered":"Calculated static pressure (node values) do not match the set boundary value"},"content":{"rendered":"<p>&lt;p&gt;Hi,&lt;\/p&gt;&lt;p&gt;I use Fluent to simulate the nozzle. The outlet is set as a pressure outlet (see picture). The operating pressure is set to zero. The fluid is ideal air and not supersonic. The turbulence model is k-omega SST. The simulation is steady state. No backflow at the outlet. I found that the static pressure value of the nodes at the outlet does not match the pressure value I set (see picture). When I check the node values&nbsp;and the boundary condition value at the same time, the pressure distribution at the outlet is different again. I would like to ask what is the reason for this. I have read the guides but didn&#8217;t find the answer.&lt;\/p&gt;&lt;p&gt;Thanks in advance.&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/27-11-2024-1732708406-Setup for Outlet.PNG\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/27-11-2024-1732708430-Outlet_Static Pressure_Node_Values.png\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/27-11-2024-1732708475-Outlet_Static Pressure_Boundary_Values.png\" alt=\"\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/27-11-2024-1732708513-Outlet_Static Pressure_Node with Boundary_Values.png\" alt=\"\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-395533","topic","type-topic","status-publish","hentry","topic-tag-fluent-ansys-1","topic-tag-pressure-outlet","topic-tag-simulation"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["395533"],"_bbp_subscription":["216556","13659"],"_bbp_author_ip":["2001:638:208:4406:7c40:fb8e:89a9:ec14"],"_bbp_reply_count":["1"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["216556","13659"],"_btv_view_count":["263"],"_bbp_topic_status":["unanswered"],"_bbp_last_reply_id":["395559"],"_bbp_last_active_id":["395559"],"_bbp_last_active_time":["2024-11-27 13:40:07"]},"test":"2281935340qq-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/395533","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\/395533\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=395533"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}