.png){kind=icon}
返回
Two-flow model for piping erosion based on liquid-solid coupling
.png){kind=icon}
PRE
AI
DOI：10.1007/s11771-013-1737-y.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Previous studies have indicated that piping erosion greatly threatens the safe operation of various hydraulic structures. However, few mathematical models are available to perfectly describe the erosion process due to the complexity of piping. The focus of the present work is to propose a new fluid-solid coupling model to eliminate the shortcomings of existing work. A pseudo-liquid assumption is suggested to simulate the particle movement in the erosion process. Then, based on the mass and momentum conservations of the moving particles and flowing water, a new two-flow model is established by using the continuity equations and motion equations. In the model, the erosion rate of soil is determined with a particle erosion law derived from tests results of STERPI. And ERGUN's empirical equation is used to determine the interaction forces between the liquid and the solid. A numerical approach is proposed to solve the model with the finite volume method and SIMPLE algorithm. The new model is validated with the tests results of STERPI. And the soil erosion principles in piping are also explored.
Keyword:
piping erosion
two-flow model
liquid-solid interaction
erosion rate
drag force
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
4.4
论文数:
5.2K
被引数:
1.0W
机构
引用论文
.png){kind=icon}
分享收藏
查看更多内容