[Oral Presentation]颗粒形状对水下颗粒柱坍塌及次生涌浪影响的DEM-CFD模拟

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

颗粒形状对水下颗粒柱坍塌及次生涌浪影响的DEM-CFD模拟

ID：56 Submission ID：163 View Protection：ATTENDEE Updated Time：2024-04-09 22:24:33 Hits：627 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

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

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Abstract

水底滑坡及其次生涌浪是一种常见的自然灾害。本研究基于FD/IBM-CFD-DEM方法，模拟了不同颗粒形状和初始堆积高度的水下颗粒柱坍塌现象。主要关注颗粒坍塌的最大冲击距离、流动性、坍塌时间及涌浪的最大波峰和最小波谷。数值结果表明（1）随着球度、圆度的增大，初始堆积高度对水平冲击距离的影响逐步减弱。初始堆积高度达到一定程度后，坍塌时间与初始堆积高度和颗粒形状无关，但该临界堆积高度随球度增大而减小。（2）颗粒形状对涌浪的最大波峰和最小波谷有明显影响，但颗粒形状和堆积高度对波峰最大值出现时间没有影响。

Keywords

湿颗粒柱坍塌,流固耦合,颗粒形状,离散单元法

Speaker

朱子健

武汉大学土木建筑工程学院

Submission Author

朱子健武汉大学土木建筑工程学院

楚锡华武汉大学

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