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射流脉动
相关语句
  jet fluctuation
     Controlling of Jet Fluctuation in Plasma Spray Gun
     等离子体喷枪中的射流脉动控制
短句来源
     The CWP distorts,diffuses and mixes because of bubbles and jet fluctuation. The mixing of CWP was investigated by the correlation analysis of digital image. There are different mixing mechanisms in the different regions.
     并利用数字图像相关性分析方法得到了水煤膏在流化床内的混合过程 ,指出在流化床不同区域水煤膏混合机理不同 ,在射流影响区底部 ,由于射流脉动以及携带作用使水煤膏颗粒混合 ;
短句来源
     The effects of fluidization number, injection velocity ,particle mean diameter and static bed height on jet fluctuation are discussed.
     研究了流化数、射流初始速度、颗粒平均粒径及静态床层高度对射流脉动特性的影响。
短句来源
     Jet fluctuation in plasma spray gun is an essential factor affecting the spraying quality,which is mainly due to the arc divided flow.
     电弧等离子体喷枪中的射流脉动是影响等离子体喷涂质量的一个非常重要的因素 ,射流脉动很大程度上是由于等离子体喷枪内电弧分流引起的。
短句来源
  “射流脉动”译为未确定词的双语例句
     An Experimental Study on Self Resonant Cavitating Jet under Ambient Pressure
     围压作用下自振空化射流脉动特性实验研究
短句来源
     CORRELATION AND SPECTRUM CHARACTERISTICS OF WALL FLUCRUATING PRESSURE BY TWO-DIMENSIONAL SUBMERGED JETS
     二元淹没射流脉动壁压的相关与频谱特征
短句来源
     Research on Fluctuation of Vertical Jet in a Fluidized Bed
     流化床内垂直向上射流脉动特性的试验研究
短句来源
     Study on wallpressure fluctuation of vertically impinging jet
     正冲击射流脉动壁压的正交分解与低阶近似
短句来源
     Investigation on wall-pressure fluctuation of vertically impinging jet
     垂直冲击射流脉动壁压深化研究
短句来源
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  相似匹配句对
     Controlling of Jet Fluctuation in Plasma Spray Gun
     等离子体喷枪中的射流脉动控制
短句来源
     The Fluctuation Correlation of a Non-Isothermal Turbulent Jet
     非等温湍流射流脉动关联
短句来源
     A Study of How the Jet Aeration Works
     射流曝气法研究
短句来源
     Insertion fluidic flowrate meter
     插入式射流流速计
短句来源
     Chaotic Pulsation in Variable Stars
     变星的混沌脉动
短句来源
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Through the rebearch of maximum entropy spectrum method of time series analy-sis, the power density spectrum with much higher resolution than the classical spectrummethod can be obtained and the engineering indentification model of boilover premonito-ry noise was also founded to diagnose and predict the occurrence of boilover,The in-proved maxlmum Entropy spectrum method was di5cussed in part I of this paper,and itsfeasibility was proved by studying the spectral structure of the thermal mixing layer andturbulence...

Through the rebearch of maximum entropy spectrum method of time series analy-sis, the power density spectrum with much higher resolution than the classical spectrummethod can be obtained and the engineering indentification model of boilover premonito-ry noise was also founded to diagnose and predict the occurrence of boilover,The in-proved maxlmum Entropy spectrum method was di5cussed in part I of this paper,and itsfeasibility was proved by studying the spectral structure of the thermal mixing layer andturbulence impinging jet.

本文通过对数字时间序列分析中最大熵谱法的研究,给出了分辨率比传统谱方法高得多的功率谱,并在扬沸火灾监测预报方面建立了扬沸前兆噪声的工程识别模型。本文第一部分讨论了改进的最大熵谱法,并通过研究热混合层的脉动温度和湍流撞击射流的脉动速度的谱结构,验证了该方法的可行性。

Basing on rock scouring of nozzle jet, this paper analyzes the rock-breaking way of rock bit, the mechanism of main and auxiliary hydraulic rock breaking and the basic action and effective factors relating rock breaking. The result shows, under the conditions of current pump unit, rock bit nozzle jet has a direct rock-breaking action on mudstone, shale and coarse grain sandstone, and an auxiliary one on limestone and fine grain sandstone. The impulsive pressure of nozzle jet, the jet pulse property, the rock...

Basing on rock scouring of nozzle jet, this paper analyzes the rock-breaking way of rock bit, the mechanism of main and auxiliary hydraulic rock breaking and the basic action and effective factors relating rock breaking. The result shows, under the conditions of current pump unit, rock bit nozzle jet has a direct rock-breaking action on mudstone, shale and coarse grain sandstone, and an auxiliary one on limestone and fine grain sandstone. The impulsive pressure of nozzle jet, the jet pulse property, the rock porosity and the developing condition of fracture are three effective factors of main and auxiliaty hydraulic rock breaking.

本文以喷嘴射流冲蚀岩石为依据,对牙轮钻头的破岩方式、喷嘴射流的水力破岩和水力辅助破岩机理以及破岩的基本作用和影响因素进行了分析研究。结果表明,在现有机泵条件下牙轮钻头喷嘴射流对泥岩、页岩和粗粒砂岩具有直接水力破岩作用,对石灰岩、细粒砂岩有较好的水力辅助破岩作用。喷嘴射流冲击压力、射流的脉动特性、岩石的孔隙度和裂缝发育条件是影响水力破岩和水力辅助破岩的三个重要因素

The paper has analyzed some probems affecting the design of the traectory eneny dissipator and its typeselection. It pointed out that the fluctuation effect of impact jet is the main factor tha causes partial scouring fracture ofrock bed, the cuerent formulas to estimate scouring depth have certain limitations and the purpose of the type optimization of the trajectory bucket is to improve the energy dissipation efficiency of jet in the air, reduce and disperse the jet - im-pact force, and improve dissipation...

The paper has analyzed some probems affecting the design of the traectory eneny dissipator and its typeselection. It pointed out that the fluctuation effect of impact jet is the main factor tha causes partial scouring fracture ofrock bed, the cuerent formulas to estimate scouring depth have certain limitations and the purpose of the type optimization of the trajectory bucket is to improve the energy dissipation efficiency of jet in the air, reduce and disperse the jet - im-pact force, and improve dissipation of waer cushions. Thus, the downstream scouring effect can be alleviated so thatflood could be discharged in a safe way. It also gave consideration to atomization effect caused by flood discharge.

本文针对影响挑流消能工设计选型的几个问题进行评述分析。指出:冲击射流的脉动作用是岩基局部冲刷破坏的主要因素;现有冲深估算公式均具有一定的局限性;挑坎体型优化的目标在于提高射流在空中的消能率,减小和分散入水冲击能量,改善水垫消能的作用,从而减轻射流对下游的冲刷,确保泄洪安全,并注意顾及池洪雾化的不利影响。

 
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