Experimental and numerical analysis of solitary waves generated by bed and boundary movements

✍ Scribed by L. Cea; A. Ferreiro; M. E. Vázquez-Cendón; J. Puertas

• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 262 KB
• Volume: 46
• Category: Article
• ISSN: 0271-2091
• DOI: 10.1002/fld.774

✦ Synopsis

Abstract

This paper is an experimental and numerical study about propagation and reflection of waves originated by natural hazards such as sea bottom movements, hill slope sliding and avalanches. One‐dimensional flume experiments were conducted to study the characteristics of such waves. The results of the experimental study can be used by other researchers to verify their numerical models. A finite volume numerical model, which solves the shallow water equations, was also verified using our own experimental results.

In order to deal with reflection on sloping surfaces and overtopping walls, a new condition for the treatment of the coastline is suggested. The numerical simulation of wave generation is also studied considering the bed movement. A boundary condition is proposed for this case. Those situations when the shallow water equations are valid to simulate this type of phenomena have been studied, as well as their limitations. Copyright © 2004 John Wiley & Sons, Ltd.