摘要
介绍不同雷诺数下海水绕流深海扬矿管的流动情况，分析管面形成层流及湍流边界层的分离过程，比较二者分离点的位置及压差阻力情况，分析绕流阻力和举力的形成过程、计算方法、影响因素及相应的减阻措施。
This paper introduces the flowing conditions with various Reynolds numbers as sea water moving around the deep sea mining lifting pipe. It analyzes the boundary layer separating process of both laminar and turbulent flows on the surface of lifting pipe, and compares laminar flow with turbulent flow on separating positions and resistance of disparity in pressure. We also discuss how the bypass resistance to be and the lifting force formed and calculated, the factors effecting on them, and how to reduce them.
出处
《冶金设备》
1999年第2期42-46,49,共6页
Metallurgical Equipment
关键词
扬矿管
层流
湍流
边界层
绕流阻力
海水
采矿
Lifting pipe Laminar flow Turbulent flow Boundary layer Bypass resistance
