[Oral Presentation]振动驱动浸没稠密颗粒系统的流动结构及其分选效应

Organized By

Hohai University

Monash University

Co-organized by

Southeast University

Jiangxi University of Science and Technology

Northeast University

DUT-BSU Scientific Research and Innovation Center

Suzhou University of Science and Technology

State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment

Sponsoring agency

KELI SDEM Software (Dalian) Co., Ltd.

Sugon Smart Computing Information Technology Co., Ltd.

Beijing Paratera Technology Co., Ltd.

Simpop Information Technology Co., Ltd.

Important Dates

Conference Announcement

December 2023, release First Round Announcement
Abstract Submission Deadline
March 31^th, 2024
Paper Submission Deadline
April 30^th, 2024
Registration
From January 1^st, 2024
Conference Schedule
May 31^st (Friday), 2024 On-Site Registration
June 1^st to 3^rd, 2024 Conference

振动驱动浸没稠密颗粒系统的流动结构及其分选效应

ID：86 Submission ID：239 View Protection：ATTENDEE Updated Time：2024-04-09 22:39:02 Hits：440 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

Session：[No Session] » [No Session Block]

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Abstract

认识振动驱动浸没稠密颗粒系统的动力学特性，对于深入理解矿石分选、泥石流评估等应用问题中的力学机制至关重要。本文通过CFD-DEM模拟与室内实验相结合，研究了振动驱动浸没稠密颗粒系统的动力学特性，通过新发展的均匀化方法，在单一粒径和密度球状颗粒系统中找到了有热力学对应的宏观对流结构，验证了颗粒流动结构的关键性作用；通过实验测量了不同密度比、单一粒径条件下的准二维振动驱动浸没稠密颗粒系统的动力学行为，分析其分选效果，发现分选效果与颗粒相态关系密切，而振动强度、颗粒-周围液体密度比，与液体黏度共同影响着颗粒相态，进而影响分选效果；颗粒气相态分选效果好，但需要振动强度高，而表面液化的Leidenfrost相态是振动能量输入和分选效率相平衡的较优状态。本研究有望为浸没稠密颗粒分选需求提供数据和理论支持。

Keywords

振动驱动,浸没,稠密颗粒,流动结构,分选

Speaker

安翼

副研究员 中国科学院力学研究所

Submission Author

王驰中国矿业大学（北京）;中国科学院力学研究所

安翼中国科学院力学研究所

Sponsored By

Hohai University

Panel of Computational Mechanics on Granular Materials, Working Party of Computational Mechanics, Chinese Society of Theoretical and Applied Mechanics

Jiangsu Society of Theoretical and Applied Mechanics