Long Waves Associated with Bichromatic Waves  

作　　者：董国海 叶文亚 Nicholas Dodd 

机构地区：[1]The State Key Laboratory of Coastal and O ffshore Engineering, Dalian University of Technology, Dalian 116023, China [2]Coastal Group, HR Wallingford, Howbery Park W allingford, OX10 8BA, U. K.

出　　处：《China Ocean Engineering》2001年第2期281-289,共9页中国海洋工程（英文版）

基　　金：This project was supported by the British Council;the National Natural Science Foundation of China (Grant No.59809001 and 1 9732004)

摘　　要：A numerical model of low frequency waves is presented. The model is based on that of Roelvink (1993), but the numerical techniques used in the solution are based on the so-called Weighted- Average Flux (WAF) method with Time-Operator- Splitting JOS) used for the treatment of the source terms. This method allows a small number of computational points to be used, and is particularly efficient in modeling wave setup. The short wave (or primary wave) energy equation is solved with a traditional Lax-Wendroff technique. A nonlinear wave theory is introduced. The model described in this paper is found to be satisfactory in modeling low frequency waves associated with incident bichromatic waves.A numerical model of low frequency waves is presented. The model is based on that of Roelvink (1993), but the numerical techniques used in the solution are based on the so-called Weighted- Average Flux (WAF) method with Time-Operator- Splitting JOS) used for the treatment of the source terms. This method allows a small number of computational points to be used, and is particularly efficient in modeling wave setup. The short wave (or primary wave) energy equation is solved with a traditional Lax-Wendroff technique. A nonlinear wave theory is introduced. The model described in this paper is found to be satisfactory in modeling low frequency waves associated with incident bichromatic waves.

关 键 词：incident waves bichromatic waves long waves wave breaking 

分 类 号：P731.2[天文地球—海洋科学]