Internal Flow Field Uniformity Study of Dust Collector for A Street Vacuum Sweeper Based on CFD

[摘要] Internal flow field of dust collector for a street vacuum is studied by Computational Fluid Dynamics (CFD). The causes of uneven distribution of flow field were diagnosed by simulation, and an improvement measure was put forward. The result shows that flow ratce distribution of dust collector is uneven, the reason for which is the higher wind velocity at the Inlet. A baffle plate was added at the Inlet to improve the uniformity of internal flow field. The main technical parameters, maximum flow rate uneven amplitude Δk¯iand overall flow rate uneven amplitude and overall flow rate uneven amplitude, are decreased in this way. Δk¯ is reduced from 0.3429 to 0.1308. While is reduced from 0.1012 to 0.0402.

[发布机构] Panjin Industrial Technology Institute of DUT, NO.2 Dagong Road, Panjin, China^1;School of Mechanical Science and Engineering, Jilin University, NO.5988 Renmin Street, Changchun, China^2;FAW Jiefang Automotive Co., Ltd., NO.3082 Jincheng Street, Changchun, China^3;Jilin Zijin Copper Industry Co., Ltd, NO.18 Village, Hunchun, China^4

[效力级别] 机械制造 [学科分类] 材料科学（综合）

[关键词] Baffle plate;Improvement measure;Internal flow field;Main technical parameters;Maximum flow rate;Wind velocities