{"id":160652,"date":"2021-07-24T05:20:38","date_gmt":"2021-07-24T05:20:38","guid":{"rendered":"\/forum\/forums\/topic\/what-dpm-boundary-condition-to-use-to-let-a-particle-pass-through-a-wall\/"},"modified":"2021-08-04T05:48:20","modified_gmt":"2021-08-04T05:48:20","slug":"what-dpm-boundary-condition-to-use-to-let-a-particle-pass-through-a-wall","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/what-dpm-boundary-condition-to-use-to-let-a-particle-pass-through-a-wall\/","title":{"rendered":"What DPM boundary condition to use to let a particle pass through a wall?"},"content":{"rendered":"<div class=\"Item-Body\">\n<div class=\"Message userContent\">\n<p>I have been working on tracking particles in a closed room with a rotating fan. for the fan, i have two zones, one the room, and a cylinder enclosing the fan geometry. this cylinder is applied with the sliding mesh method for the momentum source. but the walls of the cylinder need to let particles through them in order for the particles to get hit by the fan.<\/p>\n<p>I want to see where the particles are being collected, and for this, i am using trap condition for the walls of the room and the fan. I am not able to find any condition for the cylinder wall to pass the particle through it.<\/p>\n","protected":false},"template":"","class_list":["post-160652","topic","type-topic","status-closed","hentry","topic-tag-dpm","topic-tag-dpm-boundary-condition-2","topic-tag-fluent"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I have been working on tracking particles in a closed room with a rotating fan. for the fan, i have two zones, one the room, and a cylinder enclosing the fan geometry. this cylinder is applied with the sliding mesh method for the momentum source. but the walls of the cylinder need to let particles\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/what-dpm-boundary-condition-to-use-to-let-a-particle-pass-through-a-wall\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO 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