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| Numerical simulation of collapse of a granular material column using material point method |
| Received:November 19, 2022 Revised:April 05, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20221119001 |
| KeyWord:granular column collapse process material point method numerical simulation |
| Author | Institution |
| 吴凤元 |
沈阳建筑大学 土木工程学院, 沈阳 |
| 秦鹏飞 |
沈阳建筑大学 土木工程学院, 沈阳 |
| 李鑫超 |
沈阳建筑大学 土木工程学院, 沈阳 |
| 赵子豪 |
沈阳建筑大学 土木工程学院, 沈阳 |
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| Abstract: |
| In order to study the movement and accumulation characteristics of granular material collapses,the material point method was used to simulate a granular material column collapse experiment.The simulation results were compared with the experimental results.Investigations were made on the flow properties of the particles (evolution of sliding distance,accumulation height,velocity,energy,and kinetic energy flux).In order to reflect the granular flow's destructive potential during the collapse of the granular material column,the impact of the aspect ratio of the granular material column on the kinetic energy flux of the granular flow was further examined.The larger the aspect ratio of the granular material column,the larger the particle velocity at the outer edge of the granular material column and the stronger the degree of collapse.At the same time,the sliding distance and kinetic energy are increasing.For the distribution of kinetic energy flux,the closer the horizontal direction is to the initial granular material column,the greater the kinetic energy flux. |
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