Numerical Simulation of the Attack of Landslide-Generated Waves on a Vertical Wall  

作　　者：ZHENG Fei-dong HU Ya-an 

机构地区：[1]Power China Kunming Engineering Corporation Limited,Kunming 650051,China [2]Nanjing Hydraulic Research Institute,Nanjing 210029,China

出　　处：《China Ocean Engineering》2025年第1期125-134,共10页中国海洋工程(英文版)

基　　金：financially supported by the Natural Science Foundation of Chongqing,China(Grant No.cstc2020jcyj-bshX0043);POWERCHINA Science and Technology Project(Grant No.DJ-ZDXM-2022-28);Yunnan Fundamental Research Projects(Grant No.202401CF070042).

摘　　要：In channel reservoirs,a quantitative characterization of landslide-generated impulse wave-structure interactions is essential for evaluating potential damage to infrastructure and dams.In this study,the problem of landslide-generated impulse waves that attack a vertical wall was investigated in a wave channel via a smooth particle hydrodynamics(SPH)method coupled with a Chrono model.The results indicated that the longitudinal velocity beneath the leading wave crest of an incident impulse wave deviated significantly from solitary wave theory.Moreover,the variation rate in the vertical velocity along the water column coincided with the theoretical prediction only for small wave amplitudes.Nevertheless,the maximum run-up height of an impulse wave can be accurately predicted via the solitary wave theory.Moreover,the maximum wall force during impulse wave-wall interaction was significantly larger than that during solitary wave reflection,particularly for high incident wave amplitudes.Overall,the present study demonstrated some striking differences in the interactions of landslide-generated impulse waves and solitary waves with a vertical wall.

关 键 词：channel reservoirs landslide-generated impulse waves solitary waves wave-structure interaction wave reflection 

分 类 号：O35[理学—流体力学]