The dependence of distribution of settling velocity of sphercial particles on the distribution of particle sizes and densities
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AGH University of Science and Technology
Publication date: 2005-01-01
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Marian Brożek   

AGH University of Science and Technology, Department of Mineral Processing, Environment Protection and Waste Utilization, Al. Mickiewicza 30, 30-065 Kraków, Poland
Physicochem. Probl. Miner. Process. 2005;39(1):199-210
Settling velocity is an independent variable of the hydraulic separation performed for instance by means of jigs. Therefore, the settling velocity characterizes material forwarded to the separation process, The paper presents a method of determining the distribution of settling velocity in the sample of spherical particles for the turbulent particle motion in which the settling velocity is expressed by the Newton formula. Because it depends on density and si, the settling velocity is a random variable. Applying theorems of probability, calculations concerning the functions of random variables, formulas for the frequency function of settling velocity and the distribution of velocities for several combinations of distributions of particle sizes and densities were presented.
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