{"id":36025,"date":"2019-06-18T07:48:53","date_gmt":"2019-06-18T07:48:53","guid":{"rendered":"\/forum\/forums\/topic\/negative-absolute-pressure-centrifugal-pump\/"},"modified":"2019-06-18T07:48:53","modified_gmt":"2019-06-18T07:48:53","slug":"negative-absolute-pressure-centrifugal-pump","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/negative-absolute-pressure-centrifugal-pump\/","title":{"rendered":"Negative Absolute Pressure Centrifugal Pump"},"content":{"rendered":"<p>Hello<\/p>\n<p><\/p>\n<p>I am trying to simulate 3D (steady) impeller of a centrifugal pump for get the performance curves. However, in the result you can see negative absolute pressures on the surface of the blade. What in happening whit that? Negative absolute pressures are not possible in the reality.<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/7ee065d5-991d-4248-aba0-aa70007d8dca_1.1.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/85be913f-5605-4efe-807d-aa70007d9989_1.2.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/5b024091-cac8-4673-a669-aa70007da4b6_2.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/a5226519-74bf-4e92-bbd8-aa70007dae2f_3.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/581bb5b6-baa9-493b-a466-aa70007db601_4.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/6d93668d-fdce-45b2-b324-aa70007dc08d_5.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/7d63b005-2bc8-4369-ace8-aa70007dc852_6.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/5593dffa-3dab-4b94-8319-aa70007dcf9e_7.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/9301a6ed-ac55-42e2-bff9-aa70007dd6d2_8.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/0c2ca646-8ac9-4bdd-ad2d-aa70007ddeac_9.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/b37bae90-afc2-4b07-8fb7-aa70007de942_10.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/75049898-85a9-4061-a311-aa70007df2ab_11.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/a4ee631c-8aeb-4b66-a588-aa70007dfa9e_12.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/1c406d1f-3be1-412c-a4d7-aa70007e0290_13.jpg?width=690&amp;upscale=false\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/7cc24b1b-eac9-44d8-9f6b-aa700078990f\/f042a0d1-ad62-4486-8ad6-aa70007e0a1a_momentum-and-mass.jpg?width=690&amp;upscale=false\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-36025","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["8197"],"_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":["558"],"_bbp_subscription":["240812"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["36025"],"_bbp_forum_id":["27792"],"_bbp_engagement":["22555","166136"],"_bbp_voice_count":["2"],"_bbp_reply_count":["11"],"_bbp_last_reply_id":["87417"],"_bbp_last_active_id":["87417"],"_bbp_last_active_time":["2019-06-19 08:32:41"]},"test":"mrfca"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/36025","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\/36025\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=36025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}