{"id":37256,"date":"2019-08-21T16:39:15","date_gmt":"2019-08-21T16:39:15","guid":{"rendered":"\/forum\/forums\/topic\/how-to-understand-static-pressure-in-open-channel-flow-simulaions\/"},"modified":"2019-08-21T16:39:15","modified_gmt":"2019-08-21T16:39:15","slug":"how-to-understand-static-pressure-in-open-channel-flow-simulaions","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-understand-static-pressure-in-open-channel-flow-simulaions\/","title":{"rendered":"How to understand static pressure in open-channel flow simulaions"},"content":{"rendered":"<p>Attached snapshot is a pressure contour in the domain for Open Channel flow simulation. Height of the domain is 1.5 m and the free surface is at 0.3 m. Origin is at the upstream end, at 0.3 m high where the free surface and the reference pressure (ANSYS default value:&nbsp;101325 Pascal)&nbsp;is located. My question is: Should not the pressure value around the reference pressure location be close to the reference value that we set at that location? Comparing with this concept, our simulation does not have such pressure at the free surface. Could there be any other factor you suggest can be affecting the pressure?&nbsp;<\/p>\n<p> The image is the snapshot after calculations of about 2.6 seconds which is the steady-state flow condition.<br \/><span style=\"font-size: 12.0pt; font-family: 'Calibri',sans-serif; mso-fareast-font-family: 'Times New Roman'; color: black; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;\"> <br \/> <\/span><\/p>\n","protected":false},"template":"","class_list":["post-37256","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["9432"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0"],"_btv_view_count":["2605"],"_bbp_subscription":["237403"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["37256"],"_bbp_forum_id":["27792"],"_bbp_engagement":["4948","22555","159560","168421"],"_bbp_voice_count":["4"],"_bbp_reply_count":["6"],"_bbp_last_reply_id":["94159"],"_bbp_last_active_id":["94159"],"_bbp_last_active_time":["2019-09-12 19:30:11"]},"test":"xinguidaho-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/37256","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\/37256\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=37256"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}