报告详情
  1. 活动首页
  2. 报告清单
  3. 报告详情
Dynamics of particle-fluid mixture collapse with varying aspect ratios
编号：36 访问权限：仅限参会人 更新：2025-07-21 16:22:42 浏览：16次 口头报告

报告开始：暂无开始时间（Asia/Shanghai）

报告时间：暂无持续时间

所在会场：[暂无会议] [暂无会议段]

暂无文件

摘要
In this study, the collapse dynamics of fluid-particle mixture columns under different aspect ratio conditions are investigated using a coupled computational fluid dynamic (CFD) and discrete element method (DEM). The water and Herschel-Bulkley (HB) fluids mixed with particles are considered in the simulation, and dry granular columns with the same aspect ratio is simulated as a reference test. The results show that, compared to dry granular columns, both water and HB fluid significantly promote particle motion by reducing inter-particle contact, and this promotion increases with the aspect ratio. However, although the HB fluid induces more particles to participate in the motion due to its higher buoyancy effect, it does not lead to a longer final runout distance than that of the water-particle mixture. We also found that fluid properties have little effect on particle collapse behavior under shallow column conditions, while in tall columns, the effects of different fluids on particle collapse behavior are significant.
 
关键词
Granular collapse, Aspect ratio, Particle-fluid interaction
报告人
Chen Peng
Student Tongji University；Department of Geotechnical Engineering

稿件作者
Chen Peng Tongji University；Department of Geotechnical Engineering
Li XingYue Tongji University
发表评论
验证码 看不清楚，更换一张
全部评论
重要日期

  • 会议日期

    08月23日

    2025

    至

    08月26日

    2025

  • 07月21日 2025

    初稿截稿日期

  • 08月26日 2025

    注册截止日期

主办单位
Southwest Jiaotong University, China (SWJTU)
International Consortium on Geo-disaster Reduction (ICGdR)
UNESCO Chair on Geoenvironmental Disaster Reduction
承办单位
Southwest Jiaotong University, China (SWJTU)
International Consortium on Geo-disaster Reduction (ICGdR)
UNESCO Chair on Geoenvironmental Disaster Reduction
联系方式
登录查看完整联系方式
移动端
在手机上打开
小程序
打开微信小程序
客服
扫码或点此咨询