{"id":241159,"date":"2022-11-17T13:51:51","date_gmt":"2022-11-17T13:51:51","guid":{"rendered":"\/forum\/forums\/topic\/negative-pressure-problem\/"},"modified":"2022-11-17T13:51:51","modified_gmt":"2022-11-17T13:51:51","slug":"negative-pressure-problem","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/negative-pressure-problem\/","title":{"rendered":"Negative pressure problem"},"content":{"rendered":"<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2022\/11\/17-11-2022-1668692990-mceclip2.png\"><\/p>\n<p><span class=\"HwtZe\" lang=\"en\"><span class=\"jCAhz\"><span class=\"ryNqvb\">Hi all. I have a problem. Help me please. Good knowledge in CFD is required. I&#8217;m counting a jet downhole choke. This fitting creates a vacuum when liquid is supplied to it, due to the vacuum, it sucks out the liquid after the fitting. I set the flow rate to 5 liters per second, which is fed into this fitting (red), goes through the radial channels and enters the chamber where it creates a vacuum due to the round flow. There is atmospheric pressure at the outlet of this nozzle (blue) and where the nozzle also sucks out atmospheric pressure (pink). When calculating in the vacuum chamber, it shows negative pressure. Why? What else can be asked? What could be the problem?<\/span><\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-241159","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["257647","199"],"_bbp_author_ip":["23.77.218.237"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["1410"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["241159"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","257647"],"_bbp_voice_count":["2"],"_bbp_reply_count":["30"],"_bbp_last_reply_id":["245381"],"_bbp_last_active_id":["245381"],"_bbp_last_active_time":["2023-01-03 15:00:53"],"_bbp_likes_count":["1"]},"test":"javat33489gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/241159","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\/241159\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=241159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}