报告题目：RUN-UP OF VERY LONG WAVES GENERATED BY BOTTOM-TILTING WAVE MAKER

　　报告专家：Dr Yong Sung Park

　　报告时间：2017年11月24日下午4：00

　　报告地点：力学楼二楼会议室

　　Abstract:

　　Motivated by the need to generate more realistic model tsunamis, a new wave maker has been developed at the University of Dundee. The wave tank is formed with an adjustable slope and a bottom flap hinged at the beginning of the slope. The new tank can generate both leading-elevation waves (LEW) and leading-depression waves (LDW), which are an order-of-magnitude longer than solitary waves for the same wave height-to-water depth ratio. In the present study, we report the maximum run-up heights of both LEWs and LDWs along a plane beach. While LEWs exhibit simple relationship between the maximum run-up height and the wave generation parameters, no such relation is found for LDWs. It was found that the maximum run-up heights for both types of waves can be described as a power function of the steepness of the accelerating phase of the wave at the point of wave generation.

　　Dr Yong Sung Park is Senior Lecturer in Civil Engineering at the University of Dundee. At the same time, he is Royal Society of Edinburgh/Scottish Government Personal Research Fellow. Dr Park works on physical aspects of long coastal waves and its interactions with environments especially in terms of surface and bottom boundary conditions. Dr Park's research has been published in top international journals such as Journal of Fluid Mechanics and Coastal Engineering, and his work has been recognised by numerous national and international fellowships including Newton International Fellowship.