{"id":301756,"date":"2023-08-16T18:56:35","date_gmt":"2023-08-16T18:56:35","guid":{"rendered":"\/forum\/forums\/topic\/particle-filtration-in-ddpm-model\/"},"modified":"2023-08-16T18:56:35","modified_gmt":"2023-08-16T18:56:35","slug":"particle-filtration-in-ddpm-model","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/particle-filtration-in-ddpm-model\/","title":{"rendered":"Particle filtration in ddpm model"},"content":{"rendered":"<p>I am simulating a filtration process in 2d plane (5 mm x 10 mm; shown below) with a 100-micron hole size. The mesh size is 5 microns. The inlet has 1000 faces. I pass water at a velocity of&nbsp; 0.1 m\/s and the particle at 0.1 m\/s. The transient simulation time is 1s with a step size of 0.001 s. I turned on stochastic collision and tracked 0.5 million particles at high resolution. But, I could not see the filtration effect like a 100-micron hole should retain a 200-micron particle. Some particles are trapped in the wall. Other than that, I could not see particles <img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/08\/16-08-2023-1692212150-Figure 1_08-16-2023.png\" alt=\"\">trapped in the hole. I tracked the mass flow rates and pressure along the lines chosen in the 2d domain (shown in figure). The mass flow rate was chosen to adhere to 10-12% volume occupancy of particles. I do not exactly know, which parameter I&#8217;m missing to study the filtration effect.<\/p>\n","protected":false},"template":"","class_list":["post-301756","topic","type-topic","status-closed","hentry","topic-tag-fluent-ansys-1","topic-tag-ddpm","topic-tag-particle","topic-tag-water-filter-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["282503","199"],"_bbp_author_ip":["96.7.218.215"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["656"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["301756"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","282503"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["301917"],"_bbp_last_active_id":["301917"],"_bbp_last_active_time":["2023-08-17 13:54:44"]},"test":"ekamparaoregonstate-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/301756","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\/301756\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=301756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}