基于平面二维潮流模型的北仑河口悬沙输运与底床冲淤数值模拟

doi:10.11978/j.issn.1009-5470.2013.06.003

Abstract

Abstract:

To study the seabed change in the Beilun Estuary caused by natural factors, a two-dimensional current sediment numerical model is set up using the finite volume numerical method. This numerical model is validated by the measured hydrological and sediment data. The results show that the model is able to effectively simulated the movements of current and suspended sediment. We also calculate and analyze the suspended sediment transport and seabed scour of the estuary. The results reveal that the suspended sediment concentration is small in early summer, about 3-70 mg·L^-1, and the sediment concentration during the ebb tide is larger than that during the flood tide. The changes of erosion and deposition in most regions are no more than 0.05 m·a^-1. The estuary is in a dynamic balance of little erosion or deposition.

Key words: Beilun Estuary, current sediment model, finite volume method, suspended sediment transport, seabed erosion and deposition.

CLC Number:

P731.2

DONG De-xin, CHEN Bo, LI Yi-chun, CHEN Xian-yun, ZHANG Rong-can. Numerical simulation of suspended sediment transport and seabed change in the Beilun Estuary based on a two-dimensional tidal current model[J].Journal of Tropical Oceanography, 2013, 32(6): 16-21.

References

陈波, 邱绍芳. 北仑河口河道冲蚀的动力背景[J]. 广西科学, 1999 , 6(4): 317-320.
胡辉, 沈焕庭. 北仑河口河槽演变研究报告[R]. 北京: 国家海洋局, 1994: 73-84.
中国海湾志编纂委员会. 中国海湾志第十四分册[M]. 北京: 海洋出版社, 1998: 787-788.
广西水利电力勘测设计研究院. 广西中越国境界河北仑河口竹山护岛整治工程可行性研究报告[R]. 广西: 广西水利电力勘测设计研究院, 2011: 23-24.
陈波, 董德信, 邱绍芳, 等. 北仑河口海岸地貌特征与环境演变影响因素分析[J]. 广西科学, 2011, 18(1): 88-91.
SMAGORINSKY J. General circulation experiments with the primitive equations Ⅰ. The basic experiment[J]. Mon Weather Rev, 1963, 91: 99-164.
谭维炎. 浅水动力学的回顾和当代前沿问题[J]. 水科学进展, 1999, 10(3): 296-303.
ALISTAIR A, ROBERT H, MATTHEW H. A finite volume discretization of the pressure gradient force using analytic integration[J]. Ocean Model, 2008, 22: 106-113.
赵棣华, 戚晨, 庾维徳, 等. 平面二维水流-水质有限体积法及黎曼近似解模型[J]. 水科学进展, 2000, 11(4): 368-374.
赖锡军, 曲卓杰, 周杰, 等. 非结构网格上的三维浅水流动数值模型[J]. 水科学进展, 2006, 17(5): 693-699.
中国水利学会泥沙专业委员会. 泥沙手册[M]. 北京: 中国环境科学出版社, 1992: 55-56.
李瑞杰, 罗锋, 朱文谨. 悬沙运动方程及其近底泥沙通量[J]. 中国科学: E辑, 2008, 38(11): 1995-2000.
李瑞杰, 罗锋, 周华民, 等. 泥沙沉降机率和冲刷系数分析[J]. 泥沙研究, 2010, 1: 63-66.
MATSUMOTO K, OOE M, SATO T. Ocean tide model obtained from TOPEX/POSEIDON altimetry data[J]. J Geophys Res, 1995, C12(100): 25319-25330.

[1]	XIE Jieshuo, GONG Yankun, NIU Jianwei, HE Yinghui, CHEN Zhiwu, XU Jiexin, CAI Shuqu. Spatial-temporal variations of the dynamic parameters of internal solitary waves in the Sulu-Celebes Sea [J]. Journal of Tropical Oceanography, 2022, 41(6): 132-142.
[2]	LIU Shuang, JING Zhiyou, ZHAN Haigang. Predicting the mesoscale eddy in the tropical and subtropical ocean based on generative adversarial network model [J]. Journal of Tropical Oceanography, 2022, 41(5): 1-16.
[3]	XU Jie, GUO Jibing, CHEN Zhiqiang, ZHU Zhihui, WANG Qin, TANG Yanling. Comparative study on the contribution of various influential factors and characteristics analysis of an extra-tropical storm surge caused by cold front in the Yangshan Port and its adjacent area [J]. Journal of Tropical Oceanography, 2022, 41(4): 126-135.
[4]	ZENG Yigang, JING Zhiyou, HUANG Xiaolong, ZHENG Ruixi. Analysis of the dynamic characteristics of the east Guangdong shelf front in the northern South China Sea in summer [J]. Journal of Tropical Oceanography, 2022, 41(4): 136-145.
[5]	SONG Jiacheng, QI Hongshuai, ZHANG Chi, CAI Feng, YIN Hang. Analysis of energy dissipation process of wave propagation in beach foreshore under the influence of tide [J]. Journal of Tropical Oceanography, 2022, 41(4): 146-153.
[6]	MA Yuting, CAI Huayang, YANG Hao, LIU Feng, CHEN Ou, XIE Rongyao, OU Suying, YANG Qingshu. Evolution of water level profile dynamics in the Modaomen estuary of the Pearl River and its responses to human activities* [J]. Journal of Tropical Oceanography, 2022, 41(2): 52-64.
[7]	SUN Fenglin. Disaster loss assessment of storm surge based on Dempster-Shafer theory of evidence [J]. Journal of Tropical Oceanography, 2022, 41(1): 75-81.
[8]	LI Yang, HUANG Pengqi, LU Yuanzheng, QU Ling, GUO Shuangxi, CEN Xianrong, ZHOU Shengqi, ZHANG Jiazheng, QIU Xuelin. Bottom turbulent mixing of continental slope - deep sea basin in northeastern South China Sea based on high-resolution temperature observation [J]. Journal of Tropical Oceanography, 2022, 41(1): 62-74.
[9]	ZHANG Xu, JING Zhiyou, ZHENG Ruixi, HUANG Xiaolong, CAO Haijin. Submesoscale characteristics of a typical anticyclonic mesoscale eddy in Kuroshio Extension^* [J]. Journal of Tropical Oceanography, 2021, 40(6): 31-40.
[10]	YANG Xiaoxiao, CAO Haijin, JING Zhiyou. Spatial and seasonal differences of the upper-ocean submesoscale processes in the South China Sea [J]. Journal of Tropical Oceanography, 2021, 40(5): 10-24.
[11]	SHEN Qianying, JI Xiaomei, ZHANG Wei, XU Yanwen. Impact of estuarine storm surge barriers on spatiotemporal variation of tidal asymmetry in a delta^* [J]. Journal of Tropical Oceanography, 2021, 40(5): 1-9.
[12]	XIE Meifang, ZHANG Ping, YANG Hao, FU Linxi, WANG Heng, CAI Huayang, YANG Qingshu. Tidal wave propagation dynamics in Lingdingyang Bay-Humen outlet-tidal channel of the Pearl River [J]. Journal of Tropical Oceanography, 2021, 40(4): 1-13.
[13]	KUANG Min, YAO Yu, CHEN Xianjin, ZHANG Qiming, JIANG Changbo. Laboratory study of wave processes over reef coasts under the impact of an excavation pit with varying pit locations [J]. Journal of Tropical Oceanography, 2021, 40(4): 14-21.
[14]	ZHENG Jinhai, SHI Jian, CHEN Songgui. Recent research advances on multi-scale coastal wave and current characteristics of coral reefs and islands [J]. Journal of Tropical Oceanography, 2021, 40(3): 44-56.
[15]	ZHANG Hua, WEN Xixi, PENG Shiqiu. Numerical simulation of barotropic tides in Mozambique Strait and its adjacent coastal area and energy budget analysis^* [J]. Journal of Tropical Oceanography, 2021, 40(2): 7-16.

Numerical simulation of suspended sediment transport and seabed change in the Beilun Estuary based on a two-dimensional tidal current model

PDF (PC)

Like

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Metrics

Comments

Recommended 0