{"id":403305,"date":"2025-01-02T15:32:54","date_gmt":"2025-01-02T15:32:54","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/pressure-outlet-boundary-condition-2\/"},"modified":"2025-01-02T15:32:54","modified_gmt":"2025-01-02T15:32:54","slug":"pressure-outlet-boundary-condition-2","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/pressure-outlet-boundary-condition-2\/","title":{"rendered":"Pressure outlet boundary condition"},"content":{"rendered":"<p>&lt;p&gt;Hi, evryone.&lt;\/p&gt;&lt;p&gt;Help me understand what the &#8220;pressure outlet&#8221; boundary condition means. What condition is imposed on the pressure in this feature? There is no backflow, zero gauge pressure, reference pressure 1 atm.&lt;\/p&gt;&lt;p&gt;In the theory guide, p. 618, <em>&#8220;14.3.10.2.1. Pressure Outlet,&#8221;<\/em> it is written: <em>&#8220;Gauge Pressure: The static pressure is a user-specified value.&#8221;<\/em>&lt;\/p&gt;&lt;p&gt;Thus, I could expect that this boundary condition imposes a pressure value defined by the user, in my case 1 atm. However, my model includes additional heat sources that increase the temperature, which also raises the pressure. As a result, I observe a pressure significantly higher than 1 atm at the outlet.&lt;\/p&gt;&lt;p&gt;So, what exactly is the condition imposed on the pressure in the outlet region?&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-403305","topic","type-topic","status-publish","hentry","topic-tag-energy-source-term-2","topic-tag-fluent"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["403305"],"_bbp_subscription":["437052","199"],"_bbp_author_ip":["132.68.75.138"],"_bbp_last_reply_id":["403531"],"_bbp_last_active_id":["403531"],"_bbp_last_active_time":["2025-01-05 08:18:59"],"_bbp_reply_count":["2"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["437052","199"],"_btv_view_count":["816"],"_bbp_topic_status":["unanswered"]},"test":"09394b1731b098fd4ead36aaaa53f8e2acd9cab8"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/403305","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\/403305\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=403305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}