Viscous Flow in Multiparticle Systems) Motion of a Sphere in a Cylindrical Tube
Viscous Flow in Multiparticle Systems) Motion of a Sphere in a Cylindrical Tube
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多粒子系统中的粘性流）圆柱管中球体的运动
DOI：
10.1021/ie50534a032
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发表时间：
1954
影响因子：
--
通讯作者：
B. Bryne
中科院分区：
文献类型：
--
作者：
J. Happel;B. Bryne
悬浮在流体中的球形颗粒的行为在涉及沉降、填充床流动、流态化和气力输送等问题中具有重要意义。在这些论文所报道的研究中，均匀的球形粒子被用来作为实际中发现的系统的理想化。下面的研究是对单个球体沿圆柱体轴线运动的数学处理，粘性流体也在圆柱体中运动。给出了球上所受的力和流体所经历的压降的一般表达式。讨论了这些关系在球形颗粒组合中的类似问题中的应用。导出了极稀体系压降的一个简单关系式。
Behavior of spherical particles suspended in fluids is of fundamental importance in prob-lems involving settling, flow through packed beds, fluidization, and pneumatic conveying. In the investigations reported in these papers, uniform spherical particles are employed as an idealization of the systems found in practice. The following study is a mathematical treat-ment of the motion of a single sphere along the axis of a cylinder through which a viscous fluid is also moving. General expressions are derived for the force exerted on the sphere and the pressure drop experienced by the fluid. The application of these relationships to similar problems involvedin assemblages of spherical particles is discussed. A simple relationship is derived for pressure drop through very dilute systems.