[Oral Presentation]振动改流体对筒仓下料过程的影响及机理研究

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

振动改流体对筒仓下料过程的影响及机理研究

ID：25 Submission ID：50 View Protection：ATTENDEE Updated Time：2024-04-09 22:00:41 Hits：413 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

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

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Abstract

尽管研究人员已经认识到设置改流体对筒仓下料率有一定的提高，但这对改流体的位置和参数要求苛刻，提升效果往往并不理想，本文对改流体施加振动改善下料过程。本文采用离散元法（DEM）研究了三维筒仓颗粒流中，对于筒仓开口直径、改流体高度、尺寸及形状等不同参数下，振动频率和幅值对下料率增幅（振动后下料率与未振动下料率比值）的影响。结果表明对改流体施加振动后不同工况的下料率均有提升，当改流体高度较低时提升率与振幅的关系呈现非单调性。下料率在大尺寸改流体和较小开口直径工况下有较大的提升，而形状对下料率的影响较小。我们发现改流体振动会增大速度水平分量值，破坏改流体附近的力链，抑制拱的形成从而提升下料率。

Keywords

筒仓、颗粒流、下料率、离散元方法、改流体振动

Speaker

高捷

硕士研究生 东南大学

Submission Author

郑齐军 Southeast University

高捷东南大学

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