化工进展Issue(7)：1684-1690,1696,8.DOI:10.3969/j.issn.1000-6613.2014.07.005
动态旋风分离器数值模拟及实验研究
Experimental and numerical investigations of a dynamic cyclone
于洲 1马春元1
作者信息
- 1. 山东大学燃煤污染物减排国家工程实验室，山东 济南 250061
- 折叠
摘要
Abstract
Cyclone has the advantages of simple structure and stable performance,but the separation efficiency is relative low for particles smaller than10μm. This research designed a new dynamic cyclone with added rotor blades,and improved the separation efficiency. The flow field were also simulated and studied experimentally. The RNG k-εmodel and RSM model were used to simulate the gas-phase flow and the DPM model based on Eulerian-Lagrangian method was used to simulate the particle-phase flow. Tangential velocity and separation efficiency were simulated with different inlet velocities and rotate speeds,and the simulation predictions were validated by the experimental results measured by Electrical Low Pressure Impactor (ELPI). The results showed that the separation efficiency of the dynamic cyclone was good for particle larger than 5μm. And the simulation predictions proved that the tangential velocity distributions were mainly dominated by the rotate speeds for the region of impeller and dominated by the inlet velocity for the region outside of the impeller.关键词
计算流体力学/分离/离心/动态旋风分离器Key words
computational fluid dynamics(CFD)/separation/centrifugation/dynamic cyclone分类
化学化工引用本文复制引用
于洲,马春元..动态旋风分离器数值模拟及实验研究[J].化工进展,2014,(7):1684-1690,1696,8.
