化工学报Issue(10)：3838-3845,8.DOI:10.3969/j.issn.0438-1157.2014.10.013
安装涡发生器的矩形截面螺旋通道内流体流动
Fluid flow in rectangular helical channels with vortex generator
摘要
Abstract
The flow field of rectangular helical channel with triangle winglet pair vortex generator was measured experimentally. The curvature of the helical channel was 0.05. The experimental data are in good agreement with the calculated data. The evolution of vorticity in the helical channel and the influence of Reynolds number and the curvature on the effective influence distance of vortex generator were investigated by numerical method. The results show that, two extra vortices in common-flow-down type emerge near the inner wall in the rectangular cross section of the helical channel with triangle winglet pair vortex generator. The values of extra vorticity are 2.0-2.8 times those of the original vorticity. The effective influence distance of the vortex generator increases with the decrease of curvature and the increase of Reynolds number. It can reach 79 times of the height of the vortex generator with the curvature of 0.05, attack angle of 10° and Reynolds number of 5370.关键词
计算流体力学/涡发生器/流体动力学/流动/螺旋通道Key words
computational fluid dynamics/vortex generator/hydrodynamics/flow/helical channel分类
化学化工引用本文复制引用
张丽,李佳其,张春梅,王翠华,吴剑华..安装涡发生器的矩形截面螺旋通道内流体流动[J].化工学报,2014,(10):3838-3845,8.基金项目
辽宁省科技厅博士科研启动基金计划项目（20131093）；辽宁省教育厅高校优秀人才支持计划项目（LJQ2013046）。 （）
