VORTEX CHARACTERISTICS OF SPIRAL FLOW IN PIPE

摘要：

One spiral generator is introduced to generate spiral flow in pipe flow, which can make it possible that material concentration is high, though the flow velocity is slow. The spiral flow is a complex vortex of compelled vortex and potential vortex, of which the source is dependent on itself energy. The vortex intensity is analyzed by means of fluid dynamics, and the paper also indicates that the Ros number is a good indicator to evaluate the vortex intensity, finally, a rule is concluded that vortex decays radically and longitudinally in the pipe.

关键词： vortez spiral flow Ros number material transport fluid dynamics

作者: Xiangdong Zhang Xihuan Sun Xiaokang Xin

作者单位: College of Water Conservancy and Hydropower Engineering, Hohai University,Nanjing 210098, China College of Water Resources Science and Engineering, Taiyuan University of Technology,Taiyuan 030024,

会议类型: 国际会议

会议名称: 第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)

会议地点: 南京

会议语种:英文

页码: 2163-2167

在线出版日期: 2008-10-20（万方平台首次上网日期，不代表论文的发表时间）