沙流

At first, the velocity which is the outlet velocity of 2-D numerical model by using the VOF and κ~εmodel is used as the inlet velocity of the 3-D numerical model. The control equations of 3-D water and sediment movement are described in the orthogonal curvilinear coordinates, and the equations is segregated by using the Finite Volume Method.

以二维的水气两相流的VOF 模型结合雷诺时均法的κ~ε双方程模型进行水气两相流计算，得到稳定流场作为三维水沙计算的初始进口条件。

So the ginger bumped milk to spread to open in the sand gulf, the sand gulf the person call the "condense""cover up" hence"the ginger bump milk" also call"the ginger cover up milk" in the sand gulf.

因此姜撞奶就在沙湾镇流传开了，沙湾人把"凝结"叫"埋"于是"姜撞奶"在沙湾也叫"姜埋奶"。

It is proved that the flow of silt-laden liquid is a separate flow, namely,the flow rate and flow angle of silt and liquid are nonidentical in hydraulic turbine. The greater the mass content of silt,the greater is their D-value. Moreover,it is point out that the efficiency of hydraulic turbine operated with ...

推证了含沙水流在水轮机中流动时，其沙子和液体的流动属于分离流动，即沙子和液体的运动速度和运动角是不相同的，且沙子质量越大，差值越大；并指出在水头相同时，水中含沙时水轮机的效率一般低于清水时的效率；进而分析了水轮机各过流部件的泥沙摩损规律。

The source of slack deposits is the loess of the upper reach where the soil erosion is very heavy, while the source of sand is the airslaked rocks of mountainous area in the upper reach. 3. There were several "interbedded slack deposit-aeolian fine sand layers" in both LHT and YWC profiles, the silt layers are slack water deposits and the aeolian fine sand layers were carried by the NE direct wind.

在LHT、YWC和YYC剖面中，磁化率均呈现出平流沉积层中偏低，而在风吹沙和中、粗沙层中偏高的特点，其原因是平流沉积层的物质来源多为上游黄土区的土壤侵蚀和水土流失带来的土壤，而沙层的物源则是上游基岩山区的岩石经风化、搬运而来。

The analysis adopts a model entitled "the Model of Silt Souring for River and Reservoir ", calculates the model and parameters and establishes the model of disilting the regulating reservoir basedupon the data in 1967. We also analyze the density flow desilting of Fen 1 reservoir in accordance with the data from July 6 to 7, 1977 and the partial data from Guanting reservoir.

本研究采用"河流与水库统一冲淤模型"，利用1967年的实测资料对采用的模型、参数进行了验算，建立了调节水库的泥沙冲淤模型；同时根据汾河水库1977年7月6日～7日的实测异重流资料，参考官厅水库的部分资料，对汾河水库的异重流排沙进行了分析。

According to the wave energy flux method, longshore sediment transport rate of the Changxing Island sea area of Dalian is quantitatively calculated with SMB formula,Xu Xiao formula and Chatou formula.

根据波能流法，采用SMB公式、徐啸公式和夏都公式对大连长兴岛海域的沿岸输沙率进行了定量计算，并从泥沙来源、海岸地形与地貌方面，对海域的沿岸输沙问题进行了定性分析。

This paper has firstly identified these genetic units on shore beach-shore face、longshore zone、 longshore sands、erosional channel、leveed channel、turbidite lobes、turbidite sheet、slump、debris flow、 density-modified grain flow etc; At the same time, and points out that the lake of Cretaceous is open-type fresh water lake.

2首次系统确定滨滩-滨面、沿岸带、沿岸沙坝、侵蚀水道、有堤水道、浊积叶状体、席状浊积、滑塌体、碎屑流、密度改正颗粒流等成因单元。同时指出白垩纪湖泊为开放型淡水湖。

The decreased threshold shear velocity and unsaturated sand flows at the stoss slope of the dunes resulted the erosion at the toe of the dune. Under the medium and low drifting-sand winds the sands being transported have divergence with that on the surface, the mean grain size of transported sands is lower than that on the surface and the sand transporting is a stochastic process.

起动剪切速度减小与不饱和风沙流是沙物质在横向沙丘迎风坡坡脚不能产生沉积的主要原因；再者，平均风速并不能完全反映野外实际状态下气流的性质，在低－中强度的风沙活动过程中，被输送的沙物质的粒度组成与下垫面物质有明显的差异。

The field experiments on the near surface airflow, sand transport rate, grain size of the dune sands and the morphology of the dunes show that though shear velocity decreased at the toe of the transverse dune, the threshold shear velocity decreased simultaneously. The decreased threshold shear velocity and unsaturated sand flows at the stoss slope of the dunes resulted the erosion at the toe of the dune.

对简单横向沙丘表面的气流、输沙率、物质结构，以及形态学特征的观测表明，在横向沙丘迎风坡坡脚尽管剪切速度有所下降，但起动剪切速度同时减小，起动剪切速度减小与不饱和风沙流是沙物质在迎风坡坡脚不能产生沉积的主要原因。

According to the difference of sediment transportation by the single wave or wave current and the unidirect flow, two key factors are mainly grasped to consider the influences of waves on the sediment.

根据波浪和波流联合输沙与单向水流输沙特性的不同，本文主要抓住了两个关键因素来考虑波浪对泥沙的作用，即改变底部摩阻和泥沙沉速。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。