Fundamentals of engineering methods for calculating the hydrotransportation of solid particles in horizontal and vertical pipes
Authors: Kondratiev A.S., Nha T.L., Shvydko P.P.
Published in issue: #3(75)/2018
DOI: 10.18698/2308-6033-2018-3-1740
Category: Mechanics | Chapter: Mechanics of Liquid, Gas, and Plasma
The method of calculating hydrotransport parameters is based on the Lagrange approach. The results of comparison of the calculated hydrotransportation characteristics (average velocity, pressure gradient, the average volume fraction of the solid phase and its distribution in the vertical diametrical section) were compared with the experimental and calculated dependencies obtained by foreign authors. For horizontal pipelines, we compared particles of the sand of two different fractions in pipes of two diameters, at two-phase flow velocities and a volume fraction of the solid phase, as well as for sand particles of three fineness parameters in a tube with given range of velocities and a volume fraction of the solid phase. For vertical piping we show the results of comparison of the calculated and experimental values of hydrotransportation characteristics of relatively coarse particles in a pipe with two-phase flow velocities and the volume fraction of solids of given range. The developed methods showed qualitatively and quantitatively better agreement with the experimental data, in comparison with the calculation methods used by foreign authors.
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