本文的目的是用数值计算方法来研究离心式压气机叶轮内的旋涡运动。
The objective of the present paper is to study the vortices motions in the impeller ofvaneless diffuser of centrifugal compressor by numerical computations.
自由旋涡气动窗口是利用流体微团作自由旋涡运动的离心力来平衡大气与光腔压力差，来作为高能激光束的输出窗口。
The free vortex aerodynamics window is used to be the window of high power laser beam, which takes advantage of the centripetal force of the free vortex motion of fluid.
采用差分方法计算旋涡流场，进而分析三角翼上前缘分离涡的运动特点及其破碎机理。
The vortex flow field is calculated with difference methods, and the motion characteristics and the bursting mechanism of the leading-edge separated vortices of delta wing are analyzed.
这种旋涡结构可能是由于A本影的逆时针自旋运动造成的。
The formation of this spiral structure may be caused by the anti-clockwise spin of umbra "A".
旋涡主义英国一个短暂的艺术和文学运动，兴起于1914年，受到立体主义和未来主义的很大影响。
A short-lived English movement in art and literature that arose in1914 and was heavily influenced by cubism and futurism.
文中分析了两种工况下流场中的旋涡结构的特点和突起物上、下游及顶部旋涡的运动特性和细部特征。
The vortex structures, the movement performances and detail characteristics of vortex in upstream, downstream and top of obstacle under the two cases are analyzed.
通过摄像法得出了旋涡表面流体质点的运动轨迹、切向和轴向时均速度。
Moving path lines, tangential and axial average velocities of particles at the vortex surface are obtained by the photography method.
涡旋波流场中旋涡有其独特的运动规律——先向下游移动，停留很短的时间后，然后向上游移动。
The vortices in the vortex wave flow have particular moving structure, they develop downstream first, stay at the point for a short time, then move upstream.
实验结果表明，在较高的雷诺数下翼型近尾迹流动是一种以旋涡的运动学和动力学特性为主导的湍流剪切流。
The experimental results indicate that the turbulent near wake flow is dominated by the dynamic and kinematic characteristics of vortices at relatively high Reynolds number.
地球的演化与太阳系在银河系中的运动规律有关，周期性的银河天体撞击使规律性的全球旋涡构造受到银河年周期的撞击破坏。
Therefore, the whole lithosphere shows distinct formation features of the whirlpools. The evolution of the earth is related to the movement law of the solar system in the galaxy.
本文介绍了平面运动激波和单个旋涡二维相互作用的实验。
This paper presents an experiment on two-dimensional interaction of a plane moving shock with a vortex.
分析了螺旋涡振干燥机内物料的运动，并结合运动特点阐述了其干燥特性。
The materials' movement inside a vertical cylindric dryer with spiral vibration was analysed, and the properties of this dryer were elucidated in the paper.
分析了螺旋涡振干燥机内物料的运动，并结合运动特点阐述了其干燥特性。
The materials' movement inside a vertical cylindric dryer with spiral vibration was analysed, and the properties of this dryer were elucidated in the paper.
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