Conveying of Coarse-Grained Particles in Pipes
Conveying of Coarse-Grained Particles in Pipes
复制标题
DOI：
--
复制
发表时间：
2013
影响因子：
2.9
通讯作者：
P. Vlasák;Z. Chára;J. Konfršt;J. Sobota;B. Kysela
中科院分区：
文献类型：
--
作者：
P. Vlasák;Z. Chára;J. Konfršt;J. Sobota;B. Kysela
在内径为100 mm的水平管和斜管中，研究了浆体速度和浓度对粗粒颗粒-水混合物流动行为和压降的影响。研究表明，粗粒颗粒-水混合物具有明显的层状结构，颗粒主要在靠近管道倒置处的一层内运动，在较高的流速下，颗粒跃迁成为主要的输送方式。竖直管内的摩阻压降小于水平管内的摩阻压降，上升管内的摩阻压降随倾角增大而增大。
The effect of slurry velocity and concentration on the coarse-grained particle–water mixtures flow behavior and pressure drops was studied in horizontal and inclined pipes of inner diameter 100 mm. The study revealed that the coarse-grained particle-water mixtures were significantly stratified, the particles moved principally in a layer close to the pipe invert, for higher flow velocities particle saltation becomes dominant mode of conveying. Frictional pressure drops in vertical pipe were less than in horizontal pipe, the frictional pressure drops in ascending pipe increases with inclination angle up to about 30 degrees.