Author(s): Hai-Xiao Jing, Wen Wang, Zhen-Dong Yang, Guo-Dong Li
Linked Author(s): Haixiao Jing
Keywords: Landslide generated water waves, Boussinesq equations, shallow water equations, dispersion
Abstract: Prediction of water waves generated by submerged landslide is of great importance in hydraulic engineering. This paper presents a comparative investigation of this problem. Two numerical models, one based on nonlinear shallow water equations and another based on extended Boussinesq equations, are firstly introduced. Then the two models are used to investigate the generation and propagation of water waves by submerged landslide. Two cases are investigated in this paper, one is water waves generated by instantaneous movement of seabed, the other is water waves generated by moving landslide over a flat bottom. The accuracy of the two models are validated by comparing against the experimental data available. The effects of dispersion on the generated water waves at both near field and far field are investigated by comparing the numerical results by these two models. Besides, the effects of slide length, height and velocity on the generated waves are also investigated for the second case
Year: 2017