[Oral Presentation]粒径分选的光滑粒子动力学计算框架

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

粒径分选的光滑粒子动力学计算框架

ID：209 Submission ID：334 View Protection：ATTENDEE Updated Time：2024-04-30 10:29:08 Hits：435 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

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

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Abstract

粒径分选现象广泛存在于自然界和工业生产过程，对颗粒材料力学行为有重要影响，是研究颗粒流等大变形问题不可忽视的因素。然而目前在连续介质力学框架下考虑粒径分选的数值计算方法较为缺乏，制约了该问题的工程尺度研究。为此，本文首先介绍了拉格朗日描述体系下粒径分选的动量守恒以及分选-扩散控制方程。然后基于光滑粒子动力学，提出了边界处颗粒丰度非齐次纽曼边界条件的实现策略。为了提高计算精度，采用了两阶段法用于边界颗粒的搜索以及法向方向的确定，并提出了边界处分选流量的C1一致性计算策略。采用剪切盒试验结果验证了所提出计算框架的正确性。并将该数值计算方法应用于滚筒内二元颗粒粒径分选现象的模拟。所提出的计算方法有望为粒径分选工程尺度分析提供技术支持。

Keywords

颗粒分选,颗粒流,拉格朗日,连续介质力学,光滑粒子动力学

Speaker

朱成伟

副研究员 浙江大学

Submission Author

朱成伟浙江大学

彭翀 ESS Engineering Software Steyr GmbH

吴伟维也纳自然资源与生命科学大学

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