[Oral Presentation]颗粒分选斑图形成过程中困结结构的关键作用

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

颗粒分选斑图形成过程中困结结构的关键作用

ID：22 Submission ID：33 View Protection：ATTENDEE Updated Time：2024-04-09 21:59:46 Hits：467 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

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

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Abstract

在双组元颗粒分选中，当雪崩停止时，颗粒床表面在流动层的上游凸起，形成局部楔形结构，称为困结结构，困结结构对分选斑图的形成十分重要。本文建立了困结头部位置分布与颗粒分选斑图之间的关系。实验结果表明，困结头部位置分布符合对数正态分布。当分布的标准差小于0.4时，出现核状斑图。当分布的标准差大于0.4时，分选斑图由核状向条纹状转变。困结头部位置分布主要受休止角和雪崩时间等因素的影响。这为描述分选斑图的形成和完善分选模型提供了重要的理论依据。

Keywords

颗粒速度；颗粒分选斑图；转筒；休止角；困结结构

Speaker

修文正

山东理工大学

Submission Author

修文正山东理工大学

李然上海理工大学

陈泉上海理工大学

杨晖上海理工大学

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