人民长江2016，Vol.47Issue(14)：81-85,5.DOI:10.16232/j.cnki.1001-4179.2016.14.019
滑坡涌浪传播及翻坝过程数值模拟
Numerical simulation of surge propagation and overtopping caused by landslide
摘要
Abstract
A landslide was generalized as a sliding block and the underwater moving law was assumed , and User Defined Function was used to simulate the surge characteristics in the process of block sliding into water by secondary development of Flu -ent software , and the surge propagating and overtopping process was analyzed .The simulation result shows that when the under-water motion form is given , the landslide surge is similar to solitary wave , which can affect a limited range under water and the impact to water bottom could be ignored;the surge movement in flow direction is a main contribution to dynamic pressure; the height of first surge would decrease and the width would increase in propagation , and the decreasing rate of surge height becomes small along the propagation direction;the water volume pushed out by sliding block is larger than block volume .Different surge overtopping processes show that the larger block can generate higher and faster surge , which is more dangerous to the lower reach.关键词
涌浪传播/翻坝/数值模拟/滑坡涌浪Key words
surge propagation/overtopping dam/numerical simulation/landslide surge分类
天文与地球科学引用本文复制引用
刘杰..滑坡涌浪传播及翻坝过程数值模拟[J].人民长江,2016,47(14):81-85,5.基金项目
攀枝花学院2014年第二批校级项目 （）
