水下铰刀作业流场特性仿真研究  

Simulation Study of Flow Field Characteristics of Underwater Reamer Operation

作　　者：黎宙 卓晓军[1] 程阳锐[1] 吉成才 吴卓 罗斌 LI Zhou;ZHUO Xiaojun;CHENG Yangrui;JI Chengcai;WU Zhuo;LUO Bin(State Key Laboratory of Exploitation and Utilization of Deep Sea Mineral Resources,Changsha Research Institute of Mining and Metallurgy Co Ltd,Changsha 410012,Hunan,China)

机构地区：[1]长沙矿冶研究院有限责任公司深海矿产资源开发利用技术国家重点实验室,湖南长沙410012

出　　处：《矿冶工程》2023年第4期1-5,共5页Mining and Metallurgical Engineering

基　　金：湖南省自然科学基金青年基金(2021JJ40552);湖南省科技创新计划项目(2021RC3126);三亚崖州湾科技城咨询项目(2020)。

摘　　要：基于固液两相流计算理论,在考虑碰撞效应的基础上,采用VOF模型建立流体力学模型,仿真分析了不同工况下铰刀作业情况。结果表明,铰刀在45°倾角下工作时效果较好,扰动范围为68.32%;随着铰刀转速增大,铰刀上方水域受扰动程度逐渐增加,流域受扰动范围呈现逐渐增大后又减小的趋势。铰刀工作参数为倾角45°、转速45 r/min和横移速度0.2 m/s时,有利于降低铰刀作业对水域的扰动,能够在一定程度上减少对水域的二次污染。Based on the calculation theory of solid⁃liquid two⁃phase flow and consideration of collision effect,a hydrodynamic model was established by using VOF model,and reamer operation under different working conditions was also analyzed by numerical simulation.It is shown that a reamer working with an inclination angle of 45°can have a good effect,resulting in percentage of disturbed area at 68.32%.As the rotating speed of reamer increases,disturbance of the waters above a reamer gradually becomes violent,and the scope of waters being disturbed also gradually becomes wider first and then narrows down.It is concluded that a reamer should work with an inclination angle of 45°,rotate at a speed of 45 r/min and move laterally at a speed of 0.2 m/s,which can reduce disturbance to the waters brought by its operation,thus minimize the secondary pollution to the waters to a certain extent.

关 键 词：清淤铰刀 数值模拟 倾角 扰动 

分 类 号：TD857[矿业工程—金属矿开采]