1、

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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3、

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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4、

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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5、

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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6、

Astronomical tide is a significant factor. Under single effect of it, the maximum tidal range is about 3.5m to 4m during three typhoons, while the flow velocity is about 1.5m/s for the maximum.

天文潮是一个重要作用因子,在三个台风期间单独作用下高桥站潮差最大有3.5m~4m,而流速有约1.5m/s。

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7、

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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8、

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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9、

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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10、

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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11、

Using graph technology to display and approve the warning water level and increasing water caused by every wind velocity and wind direction, efficiently preciously approves and predicts the storm tidal normal warning water level as well as proving a scientific reliance for the marine chemistry.

采用图形技术显示警戒水位核定值预报各级风速、风向时的增水位值,有效地、准确的对风暴潮标准警戒潮位进行核定和预报,为海洋科学化学提供了科学依据。

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12、

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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13、

Tidal flow in the Qiantang River estuary is very complex and cannot be fully described by the measured data on water level and velocity of a few points.

钱塘江河口潮流错综复杂,依靠零星的实测潮流资料无法全面描述其流场特征。

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14、

Comparison of velocity profiles associated with tidal acceleration and deceleration over intertidal flats

潮滩水流加减速阶段边界层流速剖面的比较

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15、

The calculated results show that A H has little influence on the tidal level and the average flow velocity;

结果表明,平面紊动粘性系数对潮位和平均流速的影响较小;

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16、

The distributions of water level, velocity and discharge along this reach are calculated according to different amount of the water abstraction and their impacts on the locations of the tidal limit and the tidal current limit are analyzed.

通澄长河段抽引水影响研究根据计算结果对比分析了不同抽、引水量下的水位、流速以及流量的沿程分布,及对潮区界、潮流界和下泄流量的影响。

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17、

The velocity field measurement by use of the particle image velocimetry and particle tracking velocimetry ( PIV/ PTV) system in a tidal estuary model test has advantages of high speed and accuracy.

在潮汐河口河工模型试验中采用粒子测速(PIV/PTV)系统测量流场,具有快速、精度高的优点。

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18、

Because of tidal friction and aggrandizement of the earth's volume, the earth's rotation angular velocity slows down.

随着潮汐摩擦力和地球体积的增大,地球自转角速度变慢。

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19、

The experiments also suggest that the location and formation of fronts are closely related to topography and tidal mixing, as is the velocity structure around the front.

另外,数值试验结果显示了地形和潮混合对潮汐锋的形成及锋区环流有重要影响。

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