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。
Two-phase velocity fields in a round turbulent jet with Reynolds number 8500 were measured by phase Doppler Particle Analyzer (PDPA).
采用相多普勒颗粒分析仪(PDPA)测量了雷诺数为8500的两相圆湍射流速度场，研究了两种大粒径颗粒对湍流的调制作用。
The reason of the strengthening of severe wind belt of low layer is due to the dynamicforce effect of upper layer jet and the transport effect of air particle of low latitude.
低空强风带的加强一方面由于高空急流的动力强迫作用，另一方面来源于低纬空气质点对强风动量的输送作用。
The wake vortices of an impinging jet in crossflow were studied experimentally by means of laser-induced fluorescence (LIF) flow visualization and particle image velocimetry (PIV) measurement.
本文采用LIF(激光诱导荧光)流动显示和PIV(粒子图像速度场仪)测量对横流冲击射流的尾迹涡结构进行了实验研究。
Print the technique: the particle blows up the ink-jet technique. Speed up the print speed, print quality and color even more beautiful, realistic.
打印技术：采用微粒爆发性喷墨技术。加快打印速度，使打印质量及色彩更加艳丽，逼真。
The formula shows that the velocity variation depends on jet initial states, material properties, and particle shapes.
对一般颗粒形状，理论给出的无量纲速度与实验结果有较好的一致性。
At last, three-dimensional mathematical model of gas-particle two phase turbulence was established, and it was adopted to study the gas-particle two phase rectangular jet as well.
最后，在前面二维模拟的基础上，建立了三维气粒两相湍流流动数值模拟的数学模型，并用此模型对气粒两相气粒两相矩形射流进行数值研究。
Simulation results shown that the jet velocities of gas and particle phases, and concentration decreased along both the radial and axial directions.
模拟计算表明气固两相射流速度沿轴向和径向减小，颗粒浓度下降。
To study the characteristics of the gas-particle turbulent round jet, the effects of Reynolds number on the round jet were investigated.
为了探求气固两相圆湍流射流的特性，研究了不同雷诺数对气固两相圆湍射流的影响。
The gas-particle round jet coherent structure experimental system and the visualization system were successfully designed and manufactured.
论文成功研制了气固两相圆湍射流拟序结构实验台及其流动显示系统。
In the model the exit area ratio, solid particle mass ratio, fuel enthalpy of combustion, jet gas molecular weight, chamber stagnation temperature, flight Math number etc. have been considered.
在该模型中考虑了底排出口面积比，排气固相颗粒质量比，燃料热值，燃气分子量，燃烧室总温，飞行马赫数等因素。
The study showed that when length of circular column part is 2.5 ~ 3.0 times outlet diameter, abrasive particle velocity near to 95% velocity of water-jet.
研究表明，当喷嘴的圆柱段长度是喷嘴出口直径的2 5 ~ 3 0倍时，粒子的速度能达到水射流速度的95%。
The particles circulating were studied by experiments. A suitable particle regulation and lifting structure was proposed and the particle lifting by the jet liquid was simulated.
对反应器的颗粒循环进行了实验研究，提出了一种射流输送和调节结构并对射流输送行为进行了模拟计算。
With smoothed particle hydrodynamics, we calculate the formation of micro-jet from the groove of metal surface, and reveal the dependence on the width of loading wave front.
利用光滑粒子流体动力学方法，计算了金属表面沟槽在冲击下的微射流现象，详细讨论了微射流对加载波前沿宽度的依赖性。
Nano-particle colloid jet polishing is a new kind of ultra-precision machining technology which has important research and application value in fabricating ultra smooth surface.
针对激光陀螺反射镜常用材料微晶玻璃的加工技术，介绍了一种较为成熟的超光滑表面加工方法—定偏心浸液式抛光。
Nano-particle colloid jet polishing is a new kind of ultra-precision machining technology which has important research and application value in fabricating ultra smooth surface.
针对激光陀螺反射镜常用材料微晶玻璃的加工技术，介绍了一种较为成熟的超光滑表面加工方法—定偏心浸液式抛光。
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