全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

海岸沙坝剖面和滩肩剖面特征研究

DOI: 10.3969/j.issn.0253-4193.2015.01.015

Keywords: 沙坝 滩肩 破碎波 海岸 输沙

Full-Text   Cite this paper   Add to My Lib

Abstract:

通过物理模型实验研究了海岸沙坝剖面和滩肩剖面的形成和演化过程,给出了稳定的沙坝剖面和滩肩剖面的几何特征。实验中考虑了两种初始坡度(1:20和1:10)和不同波高的规则波和不规则波,讨论了不同初始坡度海岸上破碎波空间分布特征。结果表明,沙坝产生后存在向岸和离岸两种运动形态,但最终将停留在稳定位置。稳定的沙坝剖面对应不同初始坡度和波浪存在不同的大沙坝和小沙坝分布。沙坝剖面由长时间小波高波浪序列作用后可转化为稳定滩肩剖面,该剖面不依赖于波浪和初始坡度。实验也给出了平衡剖面与理论曲线的对比以及剖面上泥沙粒径的分布

References

[1]  Sunamura T. Quantitative predictions of beach-face slopes[J]. Geological Society of America Bulletin,1984,95(2): 242-245.
[2]  Ji C,Munjiza A,Avital E,et al. Direct numerical simulation of sediment entrainment in turbulent channel flow[J]. Physics of Fluids (1994-present),2013,25(5): 056601.
[3]  尹晶,邹志利,李松. 波浪作用下沙坝不稳定性实验研究[J]. 海洋工程,2008,26(1): 40-50. Yin Jing, Zou Zhili, Li Song. Unstable sandbar movement under wave action[J]. China Ocean Engineering, 2008, 26(1): 40-50.
[4]  吴国强,邹志利,张海飞. 海岸沙坝近底悬移质通量实验研究[J]. 海洋工程,2013,31(1): 2. Wu Guoqiang, Zou Zhili, Zhang Haifei. Experiment study on near-bed suspended sediment flux on bared beach[J]. China Ocean Engineering, 2013,31(1): 2.
[5]  Dean R G.Equilibrium beach profiles: US Atlantic and Gulf coast ocean[R].University of Delaware Engineering Report 12,1977.
[6]  Hattori M,Kawamata R. Onshore-offshore transport and beach profile change[J]. Coastal Engineering Proceedings,1980,1(17).
[7]  邹志利.海岸动力学[M].北京:人民交通出版社,2009. Zou Zhili. Coastal Hydrodynamics[M]. Beijing: China Communications Press, 2009.
[8]  Morton R A,Paine J G,Gibeaut J C. Stages and durations of post-storm beach recovery,southeastern Texas coast,USA[J]. Journal of Coastal Research,1994: 884-908.
[9]  Falqués A,Coco G,Huntley D A. A mechanism for the generation of wave-driven rhythmic patterns in the surf zone[J]. Journal of Geophysical Research: Oceans (1978-2012),2000,105(C10): 24071-24087.
[10]  Hoefel F,Elgar S. Wave-induced sediment transport and sandbar migration[J]. Science,2003,299(5614): 1885-1887.
[11]  Aagaard T,Greenwood B,Hughes M. Sediment transport on dissipative,intermediate and reflective beaches[J]. Earth-Science Reviews,2013,124: 32-50.
[12]  Aubrey D G. Seasonal patterns of onshore/offshore sediment movement[J]. Journal of Geophysical Research: Oceans (1978-2012),1979,84(C10): 6347-6354.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133