介绍了地面灌溉中畦灌水流运动的特性及零惯量模型。
The characters of border irrigation water flow movement of surface irrigation and its zero-inertia model have been introduced.
由水流运动引起的移动则可以通过安装管道吊架和支架了解决。
The movement caused by water flow can be controlled by the proper placement of pipe hangers and supports.
明渠水流运动在实际工程中广泛存在，其数值模拟研究有现实意义。
Open channel flow exists widely and its numerical simulation is of reality.
植被的阻碍作用反映为植被对水流的拖曳力和阻碍水流运动所做的功。
The vegetations' drag force and the work done by the force were induced to draw the effect of vegetation on the flow.
本文给出了建立在弯道水流运动与方程基础上的弯曲河道三维水流模型。
In this paper, it is presented that the characteristics of the movement of flow in channel bends should be studied under the different flow region.
基于河工模型的相似理论，从二维浅水方程推导出潮汐河口水流运动的相似条件。
Based on similarity theory of the physical model, the similarity condition of the current movement in the tidal estuary was deduced from the 2D shallow water equations.
通过简化宽浅明渠二维水流运动方程，得到垂线平均流速在横向变化的微分方程序。
In this paper, a differential equation of describing the lateral distribution of depth averaged velocity is obtained by simplifying 2d shallow water equations of open channel flow.
根据试验数据，不仅对水轮机工况的水流运动作了定性分析，并提供了一些定量数据。
It not only gives a qualitative analysis of the flow characteristics of the pump-turbine in the generating mode, but also provides a number of specific data on the basis of the test results.
此种滗水器具有运行稳定、控制简单、不漏水、水流运动平稳、不扰动污泥层等特点。
This kind of water decanter working steadily, easy control, no leakage, flow smoothly and not disturb the sludge.
沙洲，沙滩：在海边，河床等处由沙子或小石子形成的隆起，由潮水或水流运动而形成。
A ridge, as of sand or gravel, on a shore or streambed, that is formed by the action of tides or currents.
对弯道水流运动各特征量进行量级分析，为基本方程向二维和一维简化提供了理论依据。
Scale analysis was also carried out for characteristic flow parameters as a foundation of simplification of control equations to two-dimensional and one-dimensional ones.
在自由流和淹没流时，只要水流运动满足动力相似准则就可达到泄洪洞水流流态的相似；
In free flow pattern and submerged flow pattern, as long as flow movement meet the dynamic similar criterion can reach the similarity of spillway tunnel flow pattern;
模型包括坡面水流连续方程、水流运动方程、侵蚀方程(水土流失方程)、坡面变形方程。
It consists of the equation of the slope flow continuous equation, slope flow water kinematical equation, slope soil erosion equation, slope deformed equation.
针对河口水流运动特性，采用ADCP实测水流资料对长江口水流运动规律进行研究分析。
According to the characteristics of estuarine tidal current, its movement law in the Yangtze River Estuary is studied by analyzing measured data of water flow obtained from ADCP.
弯曲型河流的水流运动研究包括流速及流速分布、比降、流场分布、环流运动、紊动特性等。
The research about the bend-flow includes velocity, the distribution of velocity, slope, the distribution of flow, circumfluence of flow and the characteristic of turbulent.
文章介绍了盲肠航道的水流运动特点及影响因素、航道通航宽度及其对船舶航行安全的影响。
In this paper, introduce the characteristics of flow athletics of the cecal channel and influencing factors, the width of navigable waterways and their impact on the safety of navigation of ships.
论述了气流模型试验模拟水流运动的可能性、无压水流气流模拟的理论和方法以及应用范围。
The probability is Studied on the air flow model to modify the fluid flow in open channel as the hydraulic modelling. The principal theory, method and the range of its application are discussed.
波涌灌溉土壤间歇入渗数学模型是进行波涌灌溉田面水流运动数值模拟和灌水方案优化设计的基础。
Infiltration model for surge irrigation is the base of surface water flow movement simulation and irrigation scheme design of surge irrigation.
分析表明，对于平原河道，动力项和阻力项偏离是主要的，惯性项的偏离对模型水流运动影响较小。
For mild channel, it is shown that dynamic term and resistance term deviations caused by the distortion influence model water flow movement more seriously than inertia term do.
潮流和风生流都是浅海水流运动的基本形式，也是研究海岸河口水动力和环境问题的基本动力因素。
Tidal current is the essential dynamic condition in the coastal zone and estuary and the basic active factor also to study the water environment and ecology problem.
采用平面二维水流泥沙数学模型计算了赣江大堤南昌段堤线改线对河段水流运动及河床冲淤的影响。
By using a 2-d sediment mathematical model, influences of riverside relocation of Nanchang reach of Ganjiang river on flow, scouring and silting were computed.
明渠均匀流是明渠水力计算中最基本的问题，对其水流运动基本规律的研究是明渠水流的基础理论和前提。
The hydraulic calculation of the uniform flow is the most fundamental problem of the open channel and its variation law is the basis of the analysis in the open channel.
本文还导得动平床情况下的流速分布公式、阻力公式和输沙率公式，使动床的水流运动和输沙过程得以联解。
The formulas of velocity distribution, flow resistance and bed load transport rate are obtained, in which the flow and sediment movement are considered simultaneously.
认为平原细沙河流的泥沙模型设计所遵循的相似准则应包括水流运动相似、推移质运动相似和悬移质运动相似。
The similarity criteria for designing the sediment models for plain sand-bed rivers include similarity of flow, bed load and suspended load.
本文通过引入滑动最小二乘法和有限差分法，得到水动力学无单元计算法并应用于复杂边界的河道水流运动方程。
Based on the moving least squares method and the finite difference scheme, a new element \ | free method is proposed and used to simulate horizontal two dimension river flow with complicated boundary.
水力模拟试验是揭示水流运动规律和解决实际工程问题的一种重要手段，水力相似原理是水力模拟试验的理论依据。
Hydraulic simulated test is an important means to reveal the laws of motion and solve the concrete problem, with the hydraulic simulating theory is its theoretical basis.
数值模拟是研究水流运动的主要手段，但由于湍流运动以及边界的不规则性，给水流运动的数值模拟带来了较大困难。
Numerical simulation is one of effective tools for studying water flow, and there are still many difficulties in numerical study of water flow for turbulence and complicated boundary conditions.
DRASTIC方法可以进行地下水污染的脆弱性评价，但是却没有涵盖风险的概念，也忽视了污染物随地表水流运动的动态特性。
The DRASTIC method can provide groundwater vulnerability to pollution but does not contain risk concept and ignore hazard's dynamic nature of water movement.
DRASTIC方法可以进行地下水污染的脆弱性评价，但是却没有涵盖风险的概念，也忽视了污染物随地表水流运动的动态特性。
The DRASTIC method can provide groundwater vulnerability to pollution but does not contain risk concept and ignore hazard's dynamic nature of water movement.
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