water level fluctuation

On the basis of multiphase flow theory,a numerical model for waterair two-phase flow was proposed,to simulate the unsteady seepage problems in bank slope induced by water level fluctuation.

非饱和土体孔隙中的水、气均遵守质量守恒定律和达西定律,根据多孔介质的多相流理论建立水-气二相流模型,模拟边坡土体在水位波动影响下水相和气相流体相互趋替的渗流行为。

From the basic differential equation of surge tank and water level fluctuation law of surge tank,an exact implicit formula for calculating the first and second surges in the throttled upper chamber surge tank following load rejection was derived.

针对目前对阻抗上室式调压室突弃全负荷时涌浪的研究主要为数值解法和图解法而无解析解法,从调压室基本微分方程和调压室水位波动的规律出发,并结合断面不变的阻抗式调压室的涌浪计算的显式公式,分别推导了阻抗上室式调压室最高涌浪和水位波动的第二振幅的精确隐式公式和显式公式。

Based on analytical method,the paper shows that raising the length of a riser can elevate the water-hammer pressure and reduce the fluctuation of water level effectively in surge tank.

通过理论和解析方法讨论连接管较长时,其内水体惯性对调压井水锤压力和水位波动的影响。

Effect of tail water level fluctuation on stable operation of units in hydropower station;

水电站尾水位波动对机组稳定运行的影响

Tidal effects on fluctuation of groundwater table along shore

潮汐对近岸地下水水位波动影响的试验研究

The Calculating and Experiments of Surges in Surge Tank and Waterhammer Pressure in Pipe Systems;

调压室水位波动及压力管道水击压强的计算和试验

Effects of Water Level Fluctuation on the Growth of Aquatic Plants (An Experimental Ecological Study);

水位波动对水生植物生长影响的实验生态学研究

An Analytical Study and Application of Groundwater Head Fluctuation with Dual Tide in an Island Aquifer

双侧海潮作用下海岛含水层系统中地下水位波动解析研究及应用

Response of saturation-capillary pressure relationship to the water table fluctuation in a sandy medium

气-水两相砂介质中饱和度-毛细压力关系与水位波动之间的响应

They are moderately well drained with a fluctuating water table and contain low amounts of organic matter, phosphorus and potassium and.

受地下水位波动影响，土壤排水程度中等，有机质、磷和钾含量低（表2、3）。

Analysis also indicates that winter ASL fluctuation propagates from north to south along the coast, but with different propagating character for different coastal segments.

分析还表明水位波动一致地从东北向西南传播,但在不同岸段传播特征有相当差异。

Dynamics of Groundwater Level in the Water Table Fluctuant Belt at the Lower Reaches of Heihe River

黑河下游地下水波动带地下水位动态变化研究

Underwater Bearings-Only Target Motion Analysis based on UKF

水下纯方位目标运动分析的UKF滤波算法

Design of Automatic Control System of Liquid Level

基于超声波传感器的水位自动控制系统

Treatment to drum level rising & falling greatly caused by pulverizer trip

磨煤机跳闸引起汽包水位大幅度波动原因及采取的措施

Detect COD_(Cr) in Waste Water with Microwave Digestion-AEP Titrimeter

微波消解-自动电位滴定仪测定废水中化学需氧量

Wenchan Ms8.0 Earthquake Coseismic Effects in ZK03 Well and VS Vertical Pendulum Tiltmeter of Ningbo Seismic Station

宁波地震台动水位与垂直摆对汶川8.0级地震的同震变化

horizontal radial motion geophone

水平径向运动检波器

Research on the Kinematic Positioning Technique with GPS Carrier Phase Measurements;

GPS动态载波相位测量定位技术研究

We picked up two suBmarines on sonar.

我们用声波定位仪观察到两条潜水艇

Waves in water move like the waveform moves along a rope.

波在水中移动就象波形沿着绳子移动一样。

First, the researchers tested whether their system could locate the small pulsing movement caused by a vibrating ball.

首先，研究者们测试人工侧线系统能否定位由一个振动球产生的微小脉冲水波。