NONLINEAR EFFECTS ON FOCUSSED WATER WAVES

Proceedings of the International Conference on Coastal Engineering

N. Dodd³  D.H. Peregrine²  D. Skyner²  M. Stiassnie¹ 

[1] Wave Power Project,Edinburgh University;Applied Mathematics, Bristol University, School of Mathematics;Civil Engng., Technion

关键词: focused waves;    nonlinear waves;    nonlinear effects;   

DOI  :  10.9753/icce.v21.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

A brief account is given of theory and experiments for water wave focussing. The theory uses weakly nonlinear wave modulation theory, that is the nonlinear Schrodinger equation, summarises earlier theoretical papers and augments them with numerical results. Experiments were performed to compare with theory. The limited comparison shown here indicates that the theory gives satisfactory results even for waves close to breaking. Both the numerical and experimental results indicate the importance of linear diffraction when waves are focussed. The relevance of diffraction is easily assessed, and is likely to dominate in many coastal examples of weak focussing.

【 授权许可】

Unknown