首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Numerical modeling of local scour around hydraulic structure in sandy beds by dynamic mesh method
Authors:Fei Fan  Bingchen Liang  Yuchuan Bai  Zhixia Zhu  Yanjun Zhu
Institution:1.State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin,P. R. China;2.Shandong Province Key Laboratory of Ocean Engineering,Ocean University of China,Qingdao,P. R. China;3.Jiangsu Province Water Transport Engineering Technology Research Center,Nanjing,P. R. China
Abstract:Local scour, a non-negligible factor in hydraulic engineering, endangers the safety of hydraulic structures. In this work, a numerical model for simulating local scour was constructed, based on the open source code computational fluid dynamics model OpenFOAM. We consider both the bedload and suspended load sediment transport in the scour model and adopt the dynamic mesh method to simulate the evolution of the bed elevation. We use the finite area method to project data between the three-dimensional flow model and the two-dimensional (2D) scour model. We also improved the 2D sand slide method and added it to the scour model to correct the bed bathymetry when the bed slope angle exceeds the angle of repose. Moreover, to validate our scour model, we conducted and compared the results of three experiments with those of the developed model. The validation results show that our developed model can reliably simulate local scour.
Keywords:
本文献已被 CNKI SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号