{"id":35819,"date":"2019-06-07T12:56:13","date_gmt":"2019-06-07T12:56:13","guid":{"rendered":"\/forum\/forums\/topic\/static-pressure-vs-total-pressure\/"},"modified":"2019-06-07T12:56:13","modified_gmt":"2019-06-07T12:56:13","slug":"static-pressure-vs-total-pressure","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/static-pressure-vs-total-pressure\/","title":{"rendered":"Static pressure vs total pressure"},"content":{"rendered":"<p>Hello everyone,<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>I want to simulate the flow inside the nozzle in CFX. Because at the inlet of the nozzle, we consider the velocity is near zero and the only parameter is Pressure. At first, I chose the static pressure=12 Mpa and outlet pressure 4Mpa but when the simulation got converged, I noticed that the flow velocity at the beginning of the nozzle is near 100m\/s which is opposite of my first assumption. What should I do, in order to get the velocity near zero at the beginning of the nozzle? I notice that CFX has the parameter which it is Zero gradients. Can I use this parameter to get velocity=0 in the inlet?<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>Best regards<\/p>\n<p><\/p>\n<p>Abbas<\/p>\n","protected":false},"template":"","class_list":["post-35819","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["7991"],"_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":["4117"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["35819"],"_bbp_forum_id":["27792"],"_bbp_engagement":["22555","158441"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["86610"],"_bbp_last_active_id":["86610"],"_bbp_last_active_time":["2019-06-07 13:38:47"]},"test":"abbas"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/35819","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\/35819\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=35819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}