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Some results of theoretical and experimental studies on slurry flows of coarse solid materials in vertical pipelines
Berman, V. ; Kril, S. ; Vlasák, Pavel
The paper presents the results of theoretical and experimental investigations of the pressure gradient for flow of a mixture of large solids particles and water in straight vertical pipelines. The mathematical model of vertical two-phase flow was developed. Based on the developed model and experimental data of the solid particles liquid and liquid relative velocity, the functional dependence of the pressure gradient on the corresponding parameters was derived. This method was generalized for hydraulic transport of a broad category of solid particles conveyed in water as a function of the average size and concentration. Comparisons of our computations with experimental data for the corresponding pressure gradients are also presented.

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