[Oral Presentation]基于CFD-DPM的弯道中不同护岸模式的数值研究

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

基于CFD-DPM的弯道中不同护岸模式的数值研究

ID：222 Submission ID：317 View Protection：ATTENDEE Updated Time：2024-04-30 10:31:45 Hits：427 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

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

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Abstract

天然河流河道中弯曲边坡是受侵蚀的严重区域，弯曲边坡防护是河道治理的重大难题。基于生态护坡理念，对比研究了砂石填装的不同形状抛袋在弯道侵蚀中的防护效果。根据实际河道结构，构建了弯道河床几何模型，进而利用CFD-DPM方法分析在弯曲河道凹岸侧投放长方体、半球体和半圆柱体抛袋下的护岸效果。在水流速度

m/s的条件下：放置有挡块的三种模型中，长方体挡块附近的凹岸受到的压力最小，半圆柱体挡块中颗粒雷诺数最小；半圆柱体挡块阻挡的颗粒量最多、颗粒的平均速度最小，比无挡块模型中的颗粒平均速度小9%。放置长方体挡块的护岸模式下，对挡块附近的凹岸有较好的防护效果，放置半圆柱体挡块的护岸模式下，阻沙效果最佳。

Keywords

砂石抛袋；CFD-DPM方法；边坡护岸；颗粒速度；冲刷

Speaker

洪良贞

河海大学

Submission Author

洪良贞河海大学

孙洪广河海大学

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