水轮机

We know that the waves of the sea can also turn turbines when they go up and down.

我们知道大海的波浪在涨落时也能使水轮机旋转。

The identified two orders models under three different load conditions are validated by step disturbance method and self-relation function method.

对所得三种不同负荷水平下的二阶离散型水轮机模型，应用阶跃扰动法和自相关函数法进行检验。

The guide bearing lubrication performance of hydropower sets is directly relative to the problems of shafting abrasion and vibration.

水轮机导轴承的润滑性能直接关系着整个机组轴系的磨损与振动问题。

According to these, transient simulations of several water and hydraulic engineerings with Press-Regulation facility has been studied. Such as Air-Cushioned Surge Chamber , Inclined Ceiling Tailrace, Siphonic Pump Station. And then some reference conclusions are offered.

因此论文主要通过数值模拟对带有变顶高尾水隧洞、气垫式调压室、虹吸断流等调压设施的水利水电工程过渡过程进行了深入的研究，并对带有调压室的复杂管系水轮机调节系统建立了状态方程，得出了对工程设计及动态仿真研究很有参考价值的结论。

By combinatory counting process to enumerate data of work condition of each generators, thus makes sure the searching and solver in optimal condition.3. Set up the power equilibrium equation and flow equilibrium equation according to the slack variable. It is not necessary to adjust the optimization any more and guarantee the optimal precision of the solution.4. Digitalize the composite characteristic curve, such as the digital input and accurate extraction of data during the performing.The above mentioned is an expanding for optimal performing of hydropower station in theory. It has good engineering applicability.

在水轮机专业领域和水电站运行领域主要成果是：(1)用人工智能的方法解决了水电站机组间负荷动态最优调度问题，且用数学方法严格证明了解的最优性；(2)用组合计数对并联机组的每个组合工况进行无遗漏枚举，从而保证搜索策略的作用范围和解的最优性；(3)利用松弛变量建立了功率平衡方程和流量平衡方程，使优化结果不再需要二次调节，保证了解的优化精度；(4)综合特性曲线的数字化，包括曲线的数字化输入和在程序运行过程中对曲线信息的精确提取。

In this paper, beginning with the basic equations of hydrodynamics, turbine and governing system, the author deduced the basic equations of transient process caused by small fluctuation in the inclined ceiling tailrace, then analyzed and calculated the basic equations.

从水力学、水轮机、调速器的基本方程出发，推导了变顶高尾水系统小波动过渡过程的基本方程，并对其进行分析与求解。

In terms of Navier-Stokes equations and LES model, the SIMPLEC algorithm with the body-fitted coordinate and tetrahedroid grid system is applied in the solution of the discretization governing equations.

本文基于N-S方程和大涡模拟模型，采用贴体坐标和四面体网格系统和SIMPLE算法，较准确地对混流式水轮机内部三维非稳定湍流流动及其尾水管内的旋涡压力脉动进行了数值模拟。

In terms of Navier-Stokes equations and LES model, the SIMPLEC algorithm with thebody-fitted coordinate and tetrahedroid grid system is applied in the solution of the discretization governing equations.

本文基于N-S方程和大涡模拟模型，采用贴体坐标和四面体网格系统和SIMPLE算法，较准确地对混流式水轮机内部三维非稳定湍流流动及其尾水管内的旋涡压力脉动进行了数值模拟。

Turbine is the core component of power generation system extracting energy from tidal current.

潮流发电水轮机是海洋潮流能发电系统的核心组成部分。

Various type and size of the turbine and generator, and provide the

定期准备不同尺寸和类型的水轮机和发电机钢钢板利用率的统计数据，提

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。