{"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":"

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  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 \"\"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’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":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t