围海造地对天津港附近海域三维潮流场影响的数值模拟研究  

Numerical Simulation of the Impact of Reclamation Project on the 3D Tidal Current Field Near Tianjin Port

作　　者：刘嘉星 刘长根[1] 

机构地区：[1]天津大学力学系,天津300072

出　　处：《海洋湖沼通报》2017年第4期79-85,共7页Transactions of Oceanology and Limnology

基　　金：天津水产局青年科技项目(J2014-05)资助

摘　　要：近年来,渤海湾实施了围海造地工程,岸线的改变会影响渤海湾水动力特征。利用验证后的三维潮流数学模型ROMS对2003和2010年天津港附近海域潮流场进行了模拟,在此基础上,探讨了天津港附近海域的潮流特征、潮流的分层特点和围海造地引起的潮流场变化情况。结果表明:东疆港东北部与汉沽之间海域涨潮流速减小0.1~0.18m/s,落潮流速减小0.1~0.15m/s,南疆港北部海域涨潮流速减小0.05~0.1m/s,落潮流速减小0.05~0.1m/s,临港工业区附近海域涨潮流速减小0.1~0.18m/s,落潮流速减小0.1~0.15m/s,南港附近海域涨潮流速减小0.1~0.15m/s,落潮流速减小0.1~0.15m/s。In recent years, many projects of land reclamation were implemented in Bohai Bay. Shoreline changes will influence the tidal flow in Bohai Bay. The 3D numerical flow model ROMS was verified and calibrated with measured data, and tidal current fields near Tianjin Port in 2003 and 2010 were sim- ulated with the verified model. The features of tidal current near Tianjin Port, the characteristics of tid- al current velocities at different levels and changes in tidal current fields caused by reclamation project were calculated and analyzed. The results showed that the tidal current velocity between northeastern Dongjiang Port and Hangu decreased 0. 1 to 0. 18 m/s in rising tide and 0. 1 to 0.15 m/s in ebb tide. The tidal current velocity of northern part of Nanjiang Port decreased 0.05 to 0.1 m/s in rising tide, but decreased 0.05 to 0. 1 m/s in ebb tide. The tidal current velocity near Lingang Industrial Area de- creased 0.1 to 0.18 m/s in rising tide, and 0. 1 to 0. 15 m/s in ebb tide. The tidal current velocity near Nangang Area decreased 0. 1 to 0. 15 m/s in rising tide, and 0. 1 to 0. 15 m/s in ebb tide.

关 键 词：三维潮流 ROMS 天津港 水动力 

分 类 号：O351[理学—流体力学]