化工学报2011，Vol.62Issue(9)：2381-2390,10.DOI:10.3969/j.issn.0438-1157.2011.09.001
多相流中颗粒旋转运动特性的研究进展
Research progress of particle rotation characteristics in multi-phase flows
摘要
Abstract
Investigation of dispersed particle rotation characteristics in multi-phase flow is important in understanding the mechanism of multi-phase flow. In previous studies, many people focused on Magnus force produced by particle rotation in solid-gas two-phase flow, and proposed Magnus lift coefficient at different Reynolds numbers through experimental and theoretical investigations. In recent years, many researchers have studied the effect of particle rotation on the flow field through theoretical numerical simulation and dealt with particle rotation by improving multi-phase flow numerical model, and the simulated results are in agreement with experimental results. But because of the limitation of the model, it is impossible to take into full account the influence of particle rotation on particle cluster and surrounding flow field. From the experimental aspect, many researchers use high-speed digital imaging system to measure particle rotation speed and particularly one author successfully measured particle rotation speed in real gas-solid two-phase flow. Nevertheless, more accurate and efficient method needs to be developed. The authors of this paper proposed that the application of the direct numerical simulation in particle rotation characteristics simulation should be the emphasis of research in the future. And the technology of the reconstruction of 3D motion and structure of the object from image sequence in computer vision science should also be paid much attention in particle rotation speed measurement.关键词
多相流/颗粒旋转/Magnus升力/转速测量/直接数值模拟Key words
multi-phase flow/ particle rotation/ Magnus force/ rotation speed measurement/ direct numerical simulation分类
能源科技引用本文复制引用
王勤辉,杨秋辉,吴学成,骆仲泱,岑可法..多相流中颗粒旋转运动特性的研究进展[J].化工学报,2011,62(9):2381-2390,10.基金项目
国家自然科学基金项目(50806067) （50806067）
教育部新世纪优秀人才支持计划项目(NCET-09-0696). （NCET-09-0696）
