tidal velocity

So a new concept that the time-dependent sediment transport capacity is proposed, which means sediment transport capacity varies with tidal velocity and water level in half tide cycle and it is a function of time.

为此提出时变挟沙能力的新概念，即水流挟沙能力在半潮周期内随潮流速和潮位同步变化，是时间的函数。

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The top of the accumulated body of the living oyster reef is 1 0 1 5 meter higher than the nearby lower intertidal flat. The tidal current velocity is commonly 0 5 2 0m/ s.

活体牡蛎堆积体顶面高于周围潮间下带滩面1015m。潮流较强，多在0520m/s。

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Phase Analysis of the Parameters of Tidal Current Velocity Profile in Xiyang Sea Waters of Jiangsu

江苏西洋海域潮流流速剖面参数的相位分析

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Based on fluid dynamic principle, the tidal velocity profile in the near-bottom layer in estuary and coast is established by introducing Prandtl mixing length theory and Von Karman self-similar theory.

本文从流体动力学原理出发，利用Prandtl混合长度和Von Karman自相似理论，建立河口海岸近底层潮流速分布的对数线性模式。

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Many observed data show that the near-bottom tidal flow velocity profile departed from the usual logarithmic law.

许多现场实测资料表明，潮流近底流速剖面偏离传统的对数分布。

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On the basis of three-dimensional equations of motion and the equation of continuity of the incompressible unsteady flow, the three dimensional velocity distribution and variation of tidal levels with.

本文根据不可压缩三维非定常流的动量方程和连续方程，求解了宽浅型明渠中三维流速分布和水位随时间的变化规律。

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Preliminary study on the tidal velocity profile in the near-bottom layer in the estuary and coast waters

河口海岸近底层潮流速分布模式初步研究

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Further analysis suggests that narrowed river channel increases flood current velocity and silted riverbed slows down tidal wave propagation velocity.

进一步研究表明，河槽束狭加大涨潮流速，河床淤浅则减缓潮波传速。

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In the Bozhong Shoal the maximum tidal velocity is 1. 2~ 1. 6 knots and the absolute value of M2 tidal current ellipticity is larger than 0. 4, which indicates that rotation of tidal currents increases so as to form tidal sand sheets.

渤中浅滩表层最大流速为1.2～1.6kn，M2分期椭率绝对值大于0.4，潮流旋转性强，形成潮流沙席。

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The hydrodynamic equations are solved and, simultaneously, the two dimensional advection diffusion equation is solved by using Alternating Direction Implicit method. The numerical solutions have been tested by comparing observed and computed values of water level, and tidal velocity.

根据课题组的二维潮流污染扩散数学模型，选取合适的参数，采用ADI法（Alternating Direction Implicit Method）求解潮流污染扩散方程，并对数值模拟结果进行了水位以及流速的验证。

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