Experimental investigation of critical suction velocity of coarse solid particles in hydraulic collecting
作者机构：Institute of MechanicsChinese Academy of SciencesBeijing 100190China School of Engineering ScienceUniversity of Chinese Academy of SciencesBeijing 100049China Institute of Deep-Sea Science and EngineeringChinese Academy of SciencesSanya 572000China
出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)
年 卷 期：2021年第37卷第4期
页 面：613-619,I0002页
核心收录：
学科分类：08[工学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）]
主 题：Hydraulic collecting Critical suction velocity Coarse particles Deep sea mining Dimensional analysis
摘 要：Hydraulic collecting and pipe transportation are regarded as an efficient way for exploiting submarine mineral resources such as the manganese nodules and *** particles on the surface of the sea bed are sucked by a pipe during the mining and crushing of the *** this paper,the critical suction velocity for lifting the coarse particles is investigated through a series of laboratory experiments,and the solid-liquid two-phase flow characteristics are *** on the dimensional analysis,the geometric similarity is found between actual exploitation process and model test with the same kind of *** controlling dimensionless parameters such as the hydraulic collecting number,the relative coarse particle diameter,the relative suction height,and the density ratio are deduced and *** results show that the logarithm in base 10 of the hydraulic collecting number increases approximately linearly with the increase of the relative suction height,while decreases with the relative particle diameter.A fitting formula for predicting the critical suction velocity is presented according to the experimental results.
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