{"id":403124,"date":"2024-12-31T21:16:10","date_gmt":"2024-12-31T21:16:10","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/pressure-drop-orifice\/"},"modified":"2024-12-31T21:16:10","modified_gmt":"2024-12-31T21:16:10","slug":"pressure-drop-orifice","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/pressure-drop-orifice\/","title":{"rendered":"Pressure Drop Orifice"},"content":{"rendered":"<p>&lt;p&gt;I have a question regarding pressure drop before orrifice. I am modelling a suction below the orrice at 5m3\/s. Above the orrifice is atmospheric pressure, Before air even enters the orrifce it drops to around -10 Pa at the entrance of the orrifice. Is this realistic or should air stay constant and drop through the orrifice.&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/12\/31-12-2024-1735679758-mceclip0.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-403124","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I have a question regarding pressure drop before orrifice. I am modelling a suction below the orrice at 5m3\/s. Above the orrifice is atmospheric pressure, Before air even enters the orrifce it drops to around -10 Pa at the entrance of the orrifice. Is this realistic or should air stay constant and drop through the\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/pressure-drop-orifice\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Pressure Drop Orifice | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"I have a question regarding pressure drop before orrifice. I am modelling a suction below the orrice at 5m3\/s. Above the orrifice is atmospheric pressure, Before air even enters the orrifce it drops to around -10 Pa at the entrance of the orrifice. 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