{"id":365177,"date":"2024-05-02T11:07:23","date_gmt":"2024-05-02T11:07:23","guid":{"rendered":"\/forum\/forums\/topic\/pressure-drop-through-a-hole-in-a-pipe\/"},"modified":"2024-05-02T11:07:23","modified_gmt":"2024-05-02T11:07:23","slug":"pressure-drop-through-a-hole-in-a-pipe","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/pressure-drop-through-a-hole-in-a-pipe\/","title":{"rendered":"Pressure drop through a hole in a pipe"},"content":{"rendered":"<p>Hello everyone,<\/p>\n<p>I am simulating a pipe flow (air) where the air enters the pipe through holes drilled at several locations. I am using the BC of pressure inlet at holes (0 Pa) and pressure outlet at the end of the pipe (suction from fan, given value). I want to check the airflow rate and pressure drop at each hole. For now, my model is able to get the correct flow rate and pressure for the holes far frompipe suction but i am getting error (high pressure) in the first 2 holes which are closer to the pipe suction. Could you please guide what could be wrong? and any recommnedations in the design. I am using k-omega SST with production limiter. Please let me know if any mpore info is needed.&nbsp;<img decoding=\"async\" title=\"pipe\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/02-05-2024-1714647919-pipe.png\" alt=\"\"> &nbsp;&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" title=\"hole_enclosure to get correct inflow into the pipe \" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/02-05-2024-1714647957-hole_enclosure.png\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-365177","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello everyone,I am simulating a pipe flow (air) where the air enters the pipe through holes drilled at several locations. I am using the BC of pressure inlet at holes (0 Pa) and pressure outlet at the end of the pipe (suction from fan, given value). I want to check the airflow rate and pressure\" \/>\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-through-a-hole-in-a-pipe\/\" \/>\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 through a hole in a pipe | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hello everyone,I am simulating a pipe flow (air) where the air enters the pipe through holes drilled at several locations. I am using the BC of pressure inlet at holes (0 Pa) and pressure outlet at the end of the pipe (suction from fan, given value). 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