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首页> 外文期刊>International Journal of Multiphase Flow >The particle-in-a-tube analogy for a multiparticle suspension
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The particle-in-a-tube analogy for a multiparticle suspension

机译:管中的粒子类似于多粒子悬浮液

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摘要

A simple analogy between a multiparticle suspension and a single particle in a tube has been obtained by using the concept of "hydraulic diameter". Fully theoretical derivations for the effect of the wall on the single particle enable the solid-fluid interaction force to be estimated with no empirical input for the viscous and the inertial flow regimes. The analogy is successfully tested in the intermediate flow regime and finally the expansion characteristics of homogeneous fluidised beds is obtained, in good agreement with the Richardson & Zaki (1954) equation, by using experimental data on the terminal settling velocity of a lone particle in a tube.
机译:通过使用“液压直径”的概念已经获得了管中的多颗粒悬浮液和单个颗粒之间的简单类比。对壁对单个粒子的影响的完整理论推论使得无需粘性和惯性流态的经验输入就可以估算出固液相互作用力。通过在中间流态下成功地对该类比进行了测试,最后通过使用关于单个粒子在水中的最终沉降速度的实验数据,与Richardson&Zaki(1954)方程很好地获得了均匀流化床的膨胀特性。管。

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