|本期目录/Table of Contents|

[1]陈同庆,张庆河.南海东沙环礁附近第二模态内孤立波生成过程的数值模拟[J].天津大学学报(自然科学版),2018,(05):527-532.[doi:10.11784/tdxbz201706057]
 Chen Tongqing,Zhang Qinghe.Numerical Simulation on the Generation Process of the Second Mode Internal Solitary Wave near Dongsha Atoll in the South China Sea[J].Journal of Tianjin University,2018,(05):527-532.[doi:10.11784/tdxbz201706057]
点击复制

南海东沙环礁附近第二模态内孤立波生成过程的数值模拟()
分享到:

《天津大学学报(自然科学版)》[ISSN:0493-2137/CN:12-1127/N]

卷:
期数:
2018年05
页码:
527-532
栏目:
论文
出版日期:
2018-05-15

文章信息/Info

Title:
Numerical Simulation on the Generation Process of the Second Mode Internal Solitary Wave near Dongsha Atoll in the South China Sea
文章编号:
0493-2137(2018)05-0527-06
作者:
陈同庆12 张庆河1
1. 天津大学水利工程仿真与安全国家重点实验室,天津 300072; 2. 大连理工大学海岸和近海工程国家重点实验室,大连 116024
Author(s):
Chen Tongqing12 Zhang Qinghe1
1.State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China
2.State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
关键词:
内孤立波 第二模态 三维模型 非静压模型
Keywords:
internal solitary wave the second mode three-dimensional model non-hydrostatic model
分类号:
P731.24
DOI:
10.11784/tdxbz201706057
文献标志码:
A
摘要:
为了研究东沙环礁附近海域第二模态内孤立波的生成机制, 基于非静压海洋模型SUNTANS, 在南海实际地形条件下建立了南海东北部内孤立波三维数值模型, 对该海域内孤立波的传播演变进行了数值模拟.模型模拟出了第二模态内孤立波, 其垂向呈三层结构, 即上层水体与下层水体水平向流速相同, 并与中间层相反.第二模态内孤立波波速模拟值与理论计算值吻合较好.根据模拟结果, 分析了东沙环礁附近海域第二模态内孤立波的生成过程, 结果表明, 该海域第二模态内孤立波源于从吕宋海峡附近海域传播而来的第一模态内孤立波和底部地形的相互作用, 并与陆坡上部内潮的影响有关.
Abstract:
In order to investigate the generation mechanism of the second mode internal solitary wave in the ocean area near Dongsha Atoll,based on non-hydrostatic model SUNTANS,a three-dimensional numerical model,which is based on actual bathymetry data,is developed to simulate the propagation and evolution of internal solitary waves in the northeastern South China Sea. The simulated results indicate that the horizontal velocity in the middle layer,induced by the second mode internal solitary wave,is in the opposite direction to those in the upper and lower layer. The calculated propagation speeds of the second mode internal solitary wave agree well with results of theoretical analysis. The generation process and mechanism of the second mode internal solitary wave in the ocean area near Dongsha Atoll are analyzed using the numerical results. The second mode internal solitary wave is generated by the interaction between the first mode internal solitary wave,arising from the Luzon Strait,and bottom topography combined with the influence of internal tide.

参考文献/References:

[1] 蔡树群, 何建玲, 谢皆烁. 近10年来南海孤立内波的研究进展[J]. 地球科学进展, 2011, 26(7):703-710.
Cai Shuqun, He Jianling, Xie Jieshuo. Recent decadal progress of the study on internal solitons in the South China Sea[J]. Advances in Earth Science, 2011, 26(7):703-710(in Chinese).
[2] 宋志军, 勾莹, 滕斌, 等. 内孤立波作用下Spar平台的运动响应[J]. 海洋学报, 2010, 32(2):12-19.
Song Zhijun, Gou Ying, Teng Bin, et al. The motion responses of a Spar platform under internal solitary wave [J]. Acta Oceanologica Sinica, 2010, 32(2):12-19(in Chinese).
[3] 尤云祥, 李巍, 时忠民, 等. 海洋内孤立波中张力腿平台的水动力特性[J]. 上海交通大学学报, 2010, 44(1):56-61.
You Yunxiang, Li Wei, Shi Zhongmin, et al. Hydrodynamic characteristics of tension leg platforms in ocean internal solitary waves[J]. Journal of Shanghai Jiaotong University, 2010, 44(1):56-61(in Chinese).
[4] Yang Y J, Tang T Y, Chang M H, et al. Solitons northeast of Tung-Sha Island during the ASIAEX pilot studies[J]. IEEE Journal of Oceanic Engineering, 2004, 29(4):1182-1199.
[5] Yang Y J, Fang Y C, Chang M H, et al. Observations of second baroclinic mode internal solitary waves on the continental slope of the northern South China Sea[J]. Journal of Geophysical Research, 2009, 114:C10003.
[6] Ramp S R, Yang Y J, Bahr F L. Characterizing the nonlinear internal wave climate in the northeastern South China Sea[J]. Nonlinear Processes in Geophysics, 2010, 17(5):481-498.
[7] Duda T F, Lynch J F, Irish J D, et al. Internal tide and nonlinear internal wave behavior at the continental slope in the northern South China Sea[J]. IEEE Journal of Oceanic Engineering, 2004, 29(4):1105-1130.
[8] Liu A K, Su F C, Hsu M K, et al. Generation and evolution of mode-two internal waves in the South China Sea[J]. Continental Shelf Research, 2013, 59:18-27.
[9] Guo C, Chen X. Numerical investigation of large amplitude second mode internal solitary waves over a slope-
shelf topography[J]. Ocean Modelling, 2012, 42:80-91.
[10] Chen Z, Xie J, Wang D, et al. Density stratification influences on generation of different modes internal solitary waves[J]. Journal of Geophysical Research, 2014, 119(10):7029-7046.
[11] Qian H B, Huang X D, Tian J W, et al. Shoaling of the internal solitary waves over the continental shelf of the northern South China Sea[J]. Acta Oceanologica Sinica, 2015, 34(9):35-42.
[12] Fringer O B, Gerritsen M, Street R L. An unstructured-grid, finite-volume, nonhydrostatic, parallel coastal ocean simulator[J]. Ocean Modelling, 2006, 14(3/4):139-173.
[13] Zhang Z, Fringer O B, Ramp S R. Three-dimensional, nonhydrostatic numerical simulation of nonlinear internal wave generation and propagation in the South China Sea[J]. Journal of Geophysical Research, 2011, 116:C05022.
[14] 陈同庆, 张庆河. 不同TVD格式对内孤立波数值模拟结果影响研究[J]. 海洋科学, 2013, 37(6):102-107.
Chen Tongqing, Zhang Qinghe. Effects of TVD schemes on the numerical simulation of the internal solitary wave[J]. Marine Sciences, 2013, 37(6):102-107(in Chinese).
[15] Amante C, Eakins B W. ETOPO1 1 Arc-Minute Global Relief Model:Procedures, Data Sources and Analysis [R]. National Geophysical Data Center, NOAA, USA, 2008.
[16] Egbert G D, Erofeeva S Y. Efficient inverse modeling of barotropic ocean tides[J]. Journal of Atmospheric and Oceanic Technology, 2002, 19(2):183-204.
[17] Shen C Y, Evans T E, Oba R M, et al. Three-dimensional hindcast simulation of internal soliton propagation in the Asian Seas international acoustics experiment area[J]. Journal of Geophysical Research, 2009, 114:C01014.
[18] Klymak J M, Alford M H, Pinkel R, et al. The breaking and scattering of the internal tide on a continental slope[J]. Journal of Physical Oceanography, 2011, 41(5):926-945.
[19] Cai S, Long X, Gan Z. A method to estimate the forces exerted by internal solitons on cylindrical piles[J]. Ocean Engineering, 2003, 30(5):673-689.

备注/Memo

备注/Memo:
收稿日期: 2017-06-22; 修回日期: 2017-12-15.
作者简介: 陈同庆(1980—), 男, 博士, 讲师, tqchen@tju.edu.cn.
通讯作者: 张庆河, qhzhang@tju.edu.cn.
基金项目: 国家自然科学基金资助项目(51509183); 大连理工大学海岸和近海工程国家重点实验室开放基金项目(LP1511).
Supported by the National Natural Science Foundation of China(No.,51509183)and the Open Fund of State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology(No.,LP1511).
更新日期/Last Update: 2018-05-10