Wave load on submerged quarter-circular and semicircular breakwaters under irregular waves

被引：30

作者：

Jiang, Xue-Lian ^{[1
,3
]}

Zou, Qing-Ping ^{[2
,4
]}

Zhang, Na ^{[3
]}

机构：

[1] Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, 92 Weijin Rd, Tianjin 300072, Peoples R China

[2] Univ Maine, Dept Civil & Environm Engn, 5711 Boardman Hall, Orono, ME 04469 USA

[3] Tianjin Chengjian Univ, Tianjin Key Lab Soft Soil Characterist & Engn Env, 26 Jinjing Rd, Tianjin 300384, Peoples R China

[4] Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China

来源：

COASTAL ENGINEERING | 2017年 / 121卷

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

Submerged circular-front breakwaters; Irregular waves; Wave load model; Pressure; Vorticity; LARGE-EDDY SIMULATION; NUMERICAL-SIMULATION; BREAKING WAVES; VERTICAL BREAKWATER; PLUNGING BREAKERS; IMPACT PRESSURES; SLOPING WALLS; REGULAR WAVE; SURF ZONE; MODEL;

D O I：

10.1016/j.coastaleng.2016.11.006

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Laboratory experiments were conducted to investigate the characteristics of wave loading on submerged circular-front breakwaters due to irregular waves. The wave force spectrum for a semicircular breakwater is similar to that for a quarter-circular breakwater. The dimensionless peak wave force for irregular waves is less than that for regular waves. The performance of our theoretical wave load model is improved significantly by incorporating the effect of wave transmission and flow separation. A RANS-VOF model was used to investigate the effect of local hydrodynamic disturbances by submerged breakwaters on the pressure distribution around the breakwater and total wave load. The numerical results reveal that wave-induced vortices at the structure have a substantial influence on the wave loading on the submerged quarter-circular breakwater but not on the semicircular breakwater. A parametric analysis is required to further improve the relationship between wave loads and the vortices.

引用

页码：265 / 277

页数：13

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