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shaft inlet
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  竖井进流
    The cavitation characteristics of the sluiceway of horizontal vortex flow inner energy dissikpater with shaft inlet
    竖井进流水平旋转内消能泄水道的空化特性
短句来源
    Numerical Simulation of Level Swirling Flow of Inner Energy Dissipation Discharge Tunnel with Shaft Inlet
    竖井进流水平旋转内消能泄洪洞流场数值模拟
短句来源
    Model Test and Numerical Simulation for Swirling Flow of Inner Dissipator with Shaft Inlet
    竖井进流水平旋转内消能泄洪洞试验研究与数值模拟
短句来源
    Inner dissipation discharge tunnel with level swirling flow and shaft inlet has many merits, such as high energy dissipation ratio, easy construction, flexible arrangement, low project cost, so the relevant study has important theoretical meaning and popularization value.
    竖井进流水平旋转内消能工具有消能率高、施工简单、布置灵活、工程造价低等优点,对其研究具有较大的理论意义和推广应用价值。
短句来源
    There are some advantages in level rotary inner energy dissipation with shaft inlet, for example, the energy dissipation rate is high> constructing is simple, assigning is flexibility, project fabrication cost is low, and so on. It has a greater theory meaning and popularize using value.
    竖井进流水平旋转内消能工具有消能率高、施工简单、布置灵活、工程造价低等优点,对其研究具有较大的理论意义和推广应用价值。
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  “shaft inlet”译为未确定词的双语例句
    Construction Technique Research on Soil Inclined Shaft Inlet
    土洞斜井进洞施工技术研究
短句来源
    The hydraulic and unsteady discharging characteristics of three types of shaft aperture inlets are measured and compared with each other for the selection design of shaft inlet of a flood discharging tunnel by model experiments.
    结合某工程泄洪洞进口体型的选型设计,通过水力学模型试验,对三种型式的竖井孔口式进口的水力特性及非恒定泄流特性进行了观测与比较。
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  shaft inlet
Effect of the shape of structural members on head losses in tower (shaft) inlet-outlets of pumped-storage stations
      


The cavitation characteristics of the sluiceway of horizontal vortex flow inner energy dissipater wwith shaft inlet are investigated with the noise detector.The basic characteristics of cavitation noise,the effect of upstream and downstream level,aeration condition,discharge and pressure are analyzed.The cause of cavitation are discussed and the measure for mitigation are suggested.

结合拉西瓦水电站导流洞1∶100的水工单体模型,利用先进的噪声量测系统,对竖井进流水平旋转内消能泄水道的空化特性进行了减压模型量测,显示与分析了该种泄水道空化噪声的基本特征以及上下游水位、通气状态、泄量及压力对其空化特性的影响,讨论了这种泄水道空化的原因,并在对比试验的基础上提出减免该种泄水道空化的措施.

The hydraulic and unsteady discharging characteristics of three types of shaft aperture inlets are measured and compared with each other for the selection design of shaft inlet of a flood discharging tunnel by model experiments.As a result,it is found that although the discharging characteristics are similar to the three types of inlets,the hydraulic characteristics,such as flow condition and pressure distribution,are obviously different.The level profile of reservoir is mainly interrelated with...

The hydraulic and unsteady discharging characteristics of three types of shaft aperture inlets are measured and compared with each other for the selection design of shaft inlet of a flood discharging tunnel by model experiments.As a result,it is found that although the discharging characteristics are similar to the three types of inlets,the hydraulic characteristics,such as flow condition and pressure distribution,are obviously different.The level profile of reservoir is mainly interrelated with the profile of flood in the reservoir and the volume feature of the reservoir.The unsteady discharging profile of the tunnel is mainly interrelated with the scale of the aperture and the level profile of the reservoir.

结合某工程泄洪洞进口体型的选型设计,通过水力学模型试验,对三种型式的竖井孔口式进口的水力特性及非恒定泄流特性进行了观测与比较。结果表明,不同型式的竖井孔口式进口,在孔口尺寸相同的情况下,虽然恒定泄流特性相似,但其他水力特性,如流态、压力等,却有较大差异。非恒定泄流时,库水位变化主要与洪水入库过程和库容容积特征有关,泄量过程则与孔口尺寸和库水位过程有关。

This paper presents observed result of basic flow pattern and critical hydraulic condition of rotary cavity flow in a typical horizontal internal energy dissipation discharge tunnel with a shaft-inlet. According to air pressure inside rotary cavity flow, cavity diameter of rotary cavity flow and ventilation volume of air hole, basic flow pattern of this type of tunnel can be classified as submerged, absorbing and free flow patterns. There is obvious transition state between flow patterns. Physical...

This paper presents observed result of basic flow pattern and critical hydraulic condition of rotary cavity flow in a typical horizontal internal energy dissipation discharge tunnel with a shaft-inlet. According to air pressure inside rotary cavity flow, cavity diameter of rotary cavity flow and ventilation volume of air hole, basic flow pattern of this type of tunnel can be classified as submerged, absorbing and free flow patterns. There is obvious transition state between flow patterns. Physical variables vary with different flow patterns. The hydraulic condition of cavity rotary flow formation is that (H-h)/h is over 2.5 or F_(r) is over 0.46.

本文给出竖井进流水平旋转内消能泄水道的基本流态序列、过渡特性及临界水力条件。这种泄水道的流态可根据空腔环流内的气体压强、空腔直径和通气孔的通气量的变化规律分为淹没流流态、吸允流流态和自由流流态;空腔环流形成的水力条件为(H h)/h 大于2.5或 Fr 大于0.46;各流态转变过程中有明显的过渡段性质;在不同的流态分区内物理量的变化规律是不同的。

 
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