A hydraulic soil erosion model based on a weakly compressible smoothed particle hydrodynamics method

被引:0
|
作者
Zili Dai
Yu Huang
Qiang Xu
机构
[1] Shimane University,Department of Geoscience
[2] Tongji University,Department of Geotechnical Engineering, College of Civil Engineering
[3] Tongji University,Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education
[4] Chengdu University of Technology,State Key Laboratory of Geohazard Prevention and Geoenvironment Protection
来源
Bulletin of Engineering Geology and the Environment | 2019年 / 78卷
关键词
Hydraulic soil erosion; Smoothed particle hydrodynamics; Water–sediment interface; Erosion criterion; Geoenvironmental hazards;
D O I
暂无
中图分类号
学科分类号
摘要
Hydraulic soil erosion is one of the most important natural phenomena driving terrain changes over time. It is associated with a variety of geoenvironmental hazards such as coastline retreat, soil loss and debris flows, and can have severe consequences. In this work, an erosion criterion was introduced to analyze the water–sediment interaction, and a hydraulic soil erosion model was then established based on the smoothed particle hydrodynamics (SPH) method. Numerical simulations of dam-break flow on a mobile bed and sediment flushing were carried out, and the performance of the hydraulic erosion model was evaluated. The numerical results matched the experimental data well, thus verifying the reliability and validity of the proposed model.
引用
收藏
页码:5853 / 5864
页数:11
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