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shaft inlet
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  竖井进流
     In the research foundation of reconstructing leading hole into swirl hole, board hole, blocking hole and other internal energy dissipation ,this paper adopts the method of combining optimization design , experimental study and theoretical analysis together, and discusses barrage effect of level rotary internal energy dissipation discharge tunnel with shaft inlet, and obtains the preliminary achievement of testing and theoretical research.
     本文在导流洞改建为旋流洞、孔板洞、洞塞洞等内消能工的研究基础上,采取优化设计、试验研究与理论分析相结合的方法,探讨了竖井进流水平旋流内消能泄洪洞的阻塞效应,取得了试验和理论研究方面的初步成果。
短句来源
     The paper simulated the hydraulic behaviors of level swirling flow field of inner energy dissipation discharge tunnel with shaft inlet by Renolds stress model.
     应用雷诺应力模型,模拟了竖井进流水平旋转内消能泄洪洞空腔环流的水力特性。
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
     Also,the pressure isoline,eddy kinetic energy,eddy dissipation rate and swirling flow inclined angle of cavity swirling flow are calculated and analyzed in their variations,whereby indicating the special hydraulic behaviors of level swirling flow of inner energy dissipation discharge tunnel with shaft inlet.
     并计算和分析了空腔环流的压强等值线、湍动能、湍动耗散率、旋流夹角等的沿程变化,揭示了竖井进流水平旋转内消能泄洪洞空腔环流的一些特有的水力特性。
短句来源
     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
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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。
短句来源
  相似匹配句对
     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 Shaft Aperture Inlet
     竖井孔口式泄洪洞恒定及非恒定泄流特性探讨
短句来源
     Shaft of Minibus
     微型汽车主动圆锥齿轮轴断裂分析
短句来源
     Blind Shaft
     盲井
短句来源
     inlet temperatureis 630℃;
     进料温度为630℃;
短句来源
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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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