[Oral Presentation]海底浊流细观动力学过程及其影响因素研究

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

海底浊流细观动力学过程及其影响因素研究

ID：246 Submission ID：285 View Protection：ATTENDEE Updated Time：2024-04-30 10:37:24 Hits：469 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

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

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Abstract

海底浊流是地球上已知最重要的沉积物搬运过程之一，其运动演化涉及流体卷吸、自加速和泥沙沉降等多种与沉积物颗粒行为密切相关的物理力学过程,针对浊流细观动力学过程的研究鲜有开展。因此，本研究基于非完全解析的计算流体动力学和离散元耦合方法（CFD-DEM）,构建了一种适用于海底浊流运动模拟的细观数值模型，从细观颗粒尺度上分析了浊流的动力学特性，明确了细观尺度下本研究中浊流是一种黏性拖曳机制主导的颗粒密度流，在不同浓度下分别表现出推移质主导和悬移质-推移质结合的输运特征。进一步通过分析颗粒/流体动力学指标的变化揭示了颗粒浓度、粒径及杨氏模量等参数对浊流运动过程的影响，并探讨了浊流细观动力学特性对地形表面及侧向限制变化的动态响应规律。

Keywords

海底浊流,海底地形,细观动力学,影响因素,CFD-DEM

Speaker

陆杨

中国海洋大学

Submission Author

刘晓磊中国海洋大学

陆杨中国海洋大学

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