Numerical study on flow over stepped spillway using Lagrangian method

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Wang, Junmin^1 ; Fu, Lei^1,2 ; Xu, Haibo^1 ; Jin, Yeechung^2

Zhejiang Institute of Hydraulics and Estuary, Hangzhou, Zhejiang

310003, China^1

Faculty of Engineering and Applied Science, University of Regina, Regina

SK

S4S0A2, Canada^2

关键词: Free surfaces;    Lagrangian methods;    Mesh-based methods;    Particle methods;    Particle-based methods;    Spillway flow;    Stepped spillways;    Velocity profiles;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/5/052019/pdf
DOI  :  10.1088/1755-1315/121/5/052019

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Flow over stepped spillway has been studied for centuries, due to its unstable and the characteristics of cavity, the simulation of this type of spillway flow is always difficult. Most of the early studies of flow over stepped spillway are based on experiment, while in the recent decades, numerical studies of flow over stepped spillway draw most of the researchers' attentions due to its simplicity and efficiency. In this study, a new Lagrangian based particle method is introduced to reproduce the phenomenon of flow over stepped spillway, the inherent advantages of this particle based method provide a convincing free surface and velocity profiles compared with previous experimental data. The capacity of this new method is proved and it is anticipated to be an alternative tool of traditional mesh based method in environmental engineering field such as the simulation of flow over stepped spillway.