流体机械2017，Vol.45Issue(5)：6-10,5.DOI:10.3969/j.issn.1005-0329.2017.05.002
基于PIV的泥泵叶轮内颗粒相对速度场的研究
Study on the Relative Velocity Field of Particles in a Slurry Pump Impeller Using Particle Image Velocimetry
徐立群 1倪福生 2刘明星 1顾磊2
作者信息
- 1. 河海大学疏浚技术教育部工程研究中心,江苏常州 213022
- 2. 河海大学,江苏常州 213022
- 折叠
摘要
Abstract
Slurry pumps are the key component of a dredger. The performance of a slurry pump is closely related to the movement of the particles in its impeller. The relative velocities of medium sends (with particle diameter of 0.2~0.4mm) and coarse sands (with particle diameter of 0.8~1mm) in an impeller are severally measured using the measurement of Particle Image Velocimetry (PIV). The results show that,the variation of the relative velocity of medium sands is similar to that of the liquid phase in the flow channel, wherea high-speed region appears in the first half with a low-speed region in the second half. Themedium sands are faster than the liquid phase in the whole flow channels. In contrast,the variation of the relative velocities of coarse sands along the flow channel is smaller. The movement of the coarse sands are slower than the liquid phase in the first half of the flow channel, but little different from the liquid phase in the second half.关键词
相对速度/中砂/粗砂/叶轮/泥泵/PIVKey words
relative velocity/medium sands/coarse sands/impeller/slurry pump/PIV分类
机械制造引用本文复制引用
徐立群,倪福生,刘明星,顾磊..基于PIV的泥泵叶轮内颗粒相对速度场的研究[J].流体机械,2017,45(5):6-10,5.
