Spectral model for wave transformation and breaking over irregular bathymetry

被引:50
作者
Chawla, A [1 ]
Ozkan-Haller, HT
Kirby, JT
机构
[1] Univ Delaware, Dept Civil & Environm Engn, Ctr Appl Coastal Res, Newark, DE 19716 USA
[2] Univ Cantabria, Ocean & Coast Res Grp, Santander, Spain
来源
JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING-ASCE | 1998年 / 124卷 / 04期
关键词
D O I
10.1061/(ASCE)0733-950X(1998)124:4(189)
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
A numerical model is presented that predicts the evolution of a directional spectral sea state over a varying bathymetry using superposition of results of a parabolic monochromatic wave model run for each initial frequency-direction component. The model predicts dissipation due to wave breaking using a statistical breaking model and has been tested with existing data for unidirectional random waves breaking over a plane beach. Experiments were also conducted for a series of random directional waves breaking over a circular shoal to test the model in a two-dimensional wave field. The model performs well in both cases, although directional effects are not included in the breaking dissipation formulation.
引用
收藏
页码:189 / 198
页数:10
相关论文
共 24 条
[1]  
[Anonymous], 1992, COAST ENG P
[2]  
Berkhoff J.C.W., 1973, Coast. Engng, V1972, P471, DOI 10.1061/9780872620490.027
[3]  
BOOIJ N, 1981, 811 DELFT U TECHN
[4]  
Borgman L. E, 1984, DIRECTIONAL SPECTRUM
[5]   SIMILARITY OF THE WIND WAVE SPECTRUM IN FINITE DEPTH WATER .1. SPECTRAL FORM [J].
BOUWS, E ;
GUNTHER, H ;
ROSENTHAL, W ;
VINCENT, CL .
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1985, 90 (NC1) :975-986
[6]  
Chawla A., 1995, THESIS U DELAWARE NE
[7]  
Goda Y., 1985, Random Seas and Design of Marine Structures
[8]  
GRASSA JM, 1990, P 22 INT C COAST ENG, P798
[9]  
ISOBE M, 1987, COASTAL ENG JPN, V30, P33
[10]  
IZUMIYA T, 1987, COASTAL ENG JPN, V30, P49