Experimental study of three-dimensional breaking wave kinematics

被引：30

作者：

She, K ^{[1
]}

Greated, CA ^{[1
]}

Easson, WJ ^{[1
]}

机构：

[1] Univ Brighton, Dept Civil Engn, Brighton BN2 4GJ, E Sussex, England

来源：

APPLIED OCEAN RESEARCH | 1997年 / 19卷 / 5-6期

关键词：

D O I：

10.1016/S0141-1187(97)00031-X

中图分类号：

P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

Particle image velocimetry has been used to examine three-dimensional breaking wave kinematics. Two cases of wave breaking were studied. In the first case, the wave field contains a single frequency with a uniform angular spreading within a given range {-alpha, alpha}. The wave field of the second case consists of a number of frequencies with a uniform angular spreading applied to each frequency. In both cases, the waves are designed such that the wave energy is focused at a given point. The degree of angular spreading has been found to have great effect:; on the breaking characteristics and kinematics. Two types of breaker were observed, the first being plunging and the second being spilling. Increasing the angular spreading had the effect of making the velocities within the extreme waves larger. The ratio of the crest velocity to the breaking wave speed was approximately unity under both single and multiple frequency conditions, regardless of the angular spreading. (C) 1998 Elsevier Science Limited. All rights reserved.

引用

页码：329 / 343

页数：15

共 26 条

[1] CHAN ES, 1987, P 6 S OFFSH MECH ARC
[2] STEEP GRAVITY-WAVES IN WATER OF ARBITRARY UNIFORM DEPTH
COKELET, ED
[J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1977, 286 (1335): : 183 - 230
[3] COKELET ED, 1979, MECHANICS WAVE INDUC, P287
[4] DOLD JW, 1985, NUMERICAL METHODS FL, V2
[5] A 5TH-ORDER STOKES THEORY FOR STEADY WAVES
FENTON, JD
[J]. JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING-ASCE, 1985, 111 (02): : 216 - 234
[6] FORRISTALL GZ, 1978, 3227 OTC
[7] THE APPLICATION OF PARTICLE IMAGE VELOCIMETRY TO THE STUDY OF WATER-WAVES
GRAY, C
GREATED, CA
[J]. OPTICS AND LASERS IN ENGINEERING, 1988, 9 (3-4) : 265 - 276
[8] MEASURED INTERNAL KINEMATICS FOR SHOALING WAVES WITH THEORETICAL COMPARISONS
GRIFFITHS, MW
EASSON, WJ
GREATED, CA
[J]. JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING-ASCE, 1992, 118 (03): : 280 - 299
[9] HEDGES TS, 1981, COAST ENG, V4, P319
[10] Kjeldsen S. P., 1981, FORECAST BREAKING WA

← 1 2 3 →