{"id":370314,"date":"2024-07-03T14:08:24","date_gmt":"2024-07-03T14:08:24","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/question-on-particle-deposition-with-the-turbulence-dispersion-in-pipe-flow\/"},"modified":"2024-07-03T14:08:24","modified_gmt":"2024-07-03T14:08:24","slug":"question-on-particle-deposition-with-the-turbulence-dispersion-in-pipe-flow","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/question-on-particle-deposition-with-the-turbulence-dispersion-in-pipe-flow\/","title":{"rendered":"question on particle deposition with the turbulence dispersion in pipe flow"},"content":{"rendered":"<p>Recently i want to model the well known experiments by Liu and Agarwal (1974) and the software adopted in my simulation is Fluent 2022 R1.&nbsp;<\/p>\n<p>The experiment aimed at obtaining the particle behavior under the effect of turbulence dispersion in a fully-developed pipe flow. And the length and diameter of the pipe are 1.02m and 0.0127m respectively. The aerosol particle is olive-oil with the density of 920 kg\/m3. The minimum diameter of the oil droplets is 1.4um.<\/p>\n<p>In my mesh, the y+ of the first layer mesh is about 1, which meets the requirements of the Enhanced Wall Function, and the turbulence model is k-w sst. According to many researchers&#8217; work, the default DRW model would overestimate the aerosol deposition for tau_p+ 0.2 (particle diameter is 1.4um on the condition of Re 9894), but it is very strange that there is no deposition in my case.<\/p>\n<p>The attached files show my model settings, can anyone help me to check the settings or gieve me some advice on DRW modelling. Thanks in advance.<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/03-07-2024-1720015598-VisousModel.png\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/03-07-2024-1720015611-DPM-1 (1).png\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/03-07-2024-1720015627-DPM-2.png\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/03-07-2024-1720015658-Injection-1.png\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/03-07-2024-1720015670-Injection-2.png\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/03-07-2024-1720015682-Injection-3.png\" alt=\"\"><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/07\/03-07-2024-1720015692-Injection-4.png\" alt=\"\"><\/p>\n","protected":false},"template":"","class_list":["post-370314","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=\"Recently i want to model the well known experiments by Liu and Agarwal (1974) and the software adopted in my simulation is Fluent 2022 R1. 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