[Oral Presentation]基于粗粒化CFD-DEM方法的突涌水动态过程模拟

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

基于粗粒化CFD-DEM方法的突涌水动态过程模拟

ID：191 Submission ID：21 View Protection：ATTENDEE Updated Time：2024-04-30 10:21:08 Hits：417 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

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

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Abstract

突涌水灾害是典型的流固耦合问题，突涌水灾害的预测和预防可以减少人员和经济损失。本文采用基于固结颗粒的粗粒化离散单元法和计算流体力学模型，对佛山地铁2号线突涌水事故进行了分析。结果表明，该模型能较好地模拟梁的弯曲，梁挠度和最大轴向应力与解析解的差异分别为7%和5%。该研究还表明，与单向耦合相比，双向耦合更符合现场观测结果。水压对突涌水的影响较大，当水压分别为0.15MPa、0.25MPa、0.35MPa、0.45MPa时，突涌水发生时间为28.0s、11.5s、7.5s 及5.0s。目前的模型能够模拟突涌水，并可能为复杂工程场景中突涌水灾害的研究提供一个框架。

Keywords

计算流体力学,粗粒化,离散单元法,突涌水,侵蚀

Speaker

褚开维

山东大学

Submission Author

田海山东大学

褚开维山东大学

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