[Oral Presentation]非球形颗粒两相流研究的一些进展：从微小颗粒到有限尺寸颗粒

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

非球形颗粒两相流研究的一些进展：从微小颗粒到有限尺寸颗粒

ID：242 Submission ID：290 View Protection：ATTENDEE Updated Time：2024-04-30 10:36:18 Hits：535 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

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

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Abstract

非球形颗粒两相流常见于自然环境及工业过程中，相关研究过去十年里受到较多关注。本次报告将介绍我们在非球形颗粒两相流方向上的数值模拟研究进展。第一部分是针对微小非球形颗粒，我们采用拉格朗日点颗粒方法对非球形颗粒在壁湍流中的统计行为进行了研究，发现了不同形状颗粒具有不同的倾向性取向分布及转动行为，发现了纤维和片状颗粒可以引起壁湍流减阻。第二部分是针对有限尺寸非球形颗粒沉降问题，我们采用浸没边界方法完全解析模拟了颗粒群沉降行为，发现了颗粒沉降速度对颗粒体积分数的依赖性、颗粒自发聚团现象以及颗粒诱导的大尺度流动结构，解释了颗粒沉降速度随着体积分数非单调变化的原因。

Keywords

非球形颗粒,湍流,沉降

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