{"id":308087,"date":"2023-09-22T12:51:02","date_gmt":"2023-09-22T12:51:02","guid":{"rendered":"\/forum\/forums\/topic\/how-to-impose-a-mass-flowrate-or-pressure-drop-without-boundaires\/"},"modified":"2023-09-22T12:51:02","modified_gmt":"2023-09-22T12:51:02","slug":"how-to-impose-a-mass-flowrate-or-pressure-drop-without-boundaires","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-impose-a-mass-flowrate-or-pressure-drop-without-boundaires\/","title":{"rendered":"How to impose a mass flowrate or pressure drop without boundaires"},"content":{"rendered":"<p>Hi all,<\/p>\n<p>&nbsp;<\/p>\n<p>How can I impose a pressure drop or mass flowrate for my following fluid domain? Would I use a profile UDF?&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/09\/22-09-2023-1695386914-mceclip0.png\"><\/p>\n<p>&nbsp;<\/p>\n<p>I am trying to simulate a representative elementary unit of a packing element.<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/09\/22-09-2023-1695387035-mceclip1.png\"><\/p>\n<p>A gas will flow upward by induced flow rate or pressure drop. The faces on the top, bottom, right, and left are periodic&nbsp; while the front and back are wall conditions.&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>-Thanks&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-308087","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=\"Hi all, How can I impose a pressure drop or mass flowrate for my following fluid domain? Would I use a profile UDF? 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