Article(id=1314907821855048267, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907656704324517, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2026.01.001, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1757865600000, receivedDateStr=2025-09-15, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791428054535, onlineDateStr=2026-10-08, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791428054535, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791428054535, creator=13701087609, updateTime=1791428054535, updator=13701087609, issue=Issue{id=1314907656704324517, tenantId=1146029695717560320, journalId=1235980550691926019, year='2026', volume='46', issue='1', pageStart='1', pageEnd='206', issueExtLink='null', onlineDate='null', pubDate='1769875200000', pubDateStr='2026-02-01', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791428015160, creator='13701087609', updateTime=1791430491940, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314918045139690301, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907656704324517, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314918045139690302, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907656704324517, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1, endPage=6, ext={EN=ArticleExt(id=1314907823977366093, articleId=1314907821855048267, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Research on Motion Characteristics of Deep-Sea Polymetallic Nodules in Vertical Pipeline of Airlift System by Numerical Simulation, columnId=1236276106018484431, journalTitle=Mining and Metallurgical Engineering, columnName=MINING, runingTitle=null, highlight=null, articleAbstract=

To investigate the motion characteristics of deep-sea polymetallic nodules in a vertical pipeline of airlift system with air at different flow rates and also study flow field characteristics of gas-liquid-solid three-phase flow in the system, numerical simulation was made with CFD-DEM coupling method for the three-phase flow in the vertical pipeline of airlift system. The results show that as air flow rate increases, the average local volume fraction of particle swarm decreases, and the frequency of occurrence is lower first and then become higher for slug flow. Both the flow rate of fluid and the average axial velocity of particle swarm in pipeline increase. The pressure drop in the pipeline increases with the local volume fraction of particle swarm, and average pressure drop decreases with the increase of air flow rate. Therefore, based on the variation in local volume fraction of particles in pipeline reflected by the pressure drop, the slug flow can be identified so as to prevent pipeline blockage.

, authors=Hai LIN^{1, 2}, Yanlian DU^{1, 3}, Mengdi FU^{1, 2}, Mengran WEI^{1, 3}, Jingyu ZHU^{1, 2}, Yijun SHEN^{1, 3}, authorsList=Hai LIN, Yanlian DU, Mengdi FU, Mengran WEI, Jingyu ZHU, Yijun SHEN, authorCompany=null, correspAuthors=Yijun SHEN, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1314907825952883278, articleId=1314907821855048267, tenantId=1146029695717560320, journalId=1235980550691926019, language=CN, title=深海多金属结核在垂直管道气力提升系统中的运动特性模拟, columnId=1236276106219811026, journalTitle=矿冶工程杂志, columnName=采矿, runingTitle=null, highlight=null, articleAbstract=

为研究深海多金属结核在垂直管道气力提升系统中不同气流量下的运动特性和气液固三相流的流场特性，采用CFD-DEM耦合方法对垂直管道气力提升系统内气-液-固三相流进行数值模拟。结果显示：随着气流量增大，颗粒群的平均局部体积分数减小、段塞流的出现频率先降低再升高、管内流体流速和颗粒群平均轴向速度增大；管内平均压降随着气流量增大而减小，随着颗粒群局部体积分数增大而增大。因此，可通过压降了解管道内颗粒局部体积分数的变化，从而判断段塞流，防止管道堵塞。

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林海（1996—），男，海南澄迈人，硕士研究生，主要研究方向为深海矿产资源开采与输送技术。E-mail: 23220855000035@hainanu.edu.cn

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林海（1996—），男，海南澄迈人，硕士研究生，主要研究方向为深海矿产资源开采与输送技术。E-mail: 23220855000035@hainanu.edu.cn

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