通过对喷流平均流及湍流脉动统计结果的对比，确定数值方法的精确性。
By comparing the statistical results of the mean flow and the turbulence fluctuation of the jet, we verify the accuracy of the numerical method.
分析结果表明，在不同的探测波长上，湍流脉动引起的时均辐射信号变化不同；
The results show that, the influences of turbulent fluctuation on time-averaged infrared signal in different wave band are different.
结果表明，在自由振动后的尾迹中，湍流脉动引起的能量输运能力比动量输运能力强，湍流的梯度输运假设与实验结果符合较好。
It has been proved that vortices transport heat more effectively than momentum, and gradient transport assumption is found to be valid for the turbulence field.
本文应用谱分析理论研究了剪切湍流场中的压力脉动，包括功率谱、均方值等。
The pressure fluctuations in turbulent shear flows are investigated with the theory of spectral analysis.
对海洋湍流速度脉动的一维概率密度作了测量，并把测量结果与高斯分布进行了比较。
One-dimensional probability densities for oceanic turbulent velocity fluctuations and comparison with the Gauss distribution are given.
讨论了局部平衡湍流的标量脉动与速度脉动相关。
The correlations between the scalar fluctuation and the velocity fluctuations for the local equilibrium turbulence are discussed.
本文叙述了电化学法测量的原理，介绍了用一半圆电极对同时测量壁面上二维湍流速度梯度脉动的方法和测量结果。
This paper describes the principle of such a measurement, and a semicircular electrode pair is suggested for the measuring of the two dimensional fluctuations of velocity gradient on the wall.
本文分析了用热线系统进行湍流测量中，温度脉动对速度脉动测量讯号的干扰。
In this paper, we have analysed the influence of temperature on the velocity signals when the hot-wire was used for measuring turbulence.
用这些公式和一台一维激光多普勒测速计，测量了方形管道中水流的二维湍流速度脉动的均方值和雷诺切应力。
Using these formulas and a 1-d LDA, mean square value of 2-d turbulent velocity fluctuation and Reynolds shear stress have been measured for water flow in a square duct.
从瞬时速度、脉动速度和平均速度分布等方面对湍流流动进行了分析。
Based on the distribution of instant velocity, fluctuating velocity and average velocity, the flow status of turbulent flow is analyzed.
用铂膜电阻温度计测量了前向台阶诱导激波与湍流边界层相互作用流场中的表面热流率脉动。
Wall heat transfer fluctuations have been measured using a platinum film resistance thermometer in forward facing steps induced shock wave and turbulent boundary layer interaction fields.
实验测量了射流与圆柱尾流纵、横向的湍流速度脉动，计算了这两种方向的湍流速度结构函数的标度规律。
The scaling of the longitudinal and transverse velocity structure functions is studied experimentally for turbulent jet and cylindrical wake flow.
本文对流场、脉动速度、颗粒浓度、湍动能、湍流强度等的分布做了讨论。
Distribution of flow vector, fluctuating velocity, turbulent kinetic energy, turbulent intensity and particle concentration were discussed.
实验还观察到气体—颗粒两相流动的湍流强度会随粒径的减小而增加，而且其脉动速度的分布将会在壁面附近出现脉动和随机分布的特征。
Furthermore, regarding the distribution of pulsation speed the characteristics of pulsation and random distribution can be observed in the neighborhood of tube wall surfaces.
利用湍流池模拟大气对流边界层的光传输，同时测量了到达角起伏和光路上的温度脉动。
With the help of the turbulent cell, an experiment is carried out to simulate light propagation in atmospheric convective boundary layer.
根据雷诺时均方法，建立了荷电两相湍流的时间平均雷诺方程组，并对其中的脉动关联项进行了模拟。
According to Reynolds-average method, Reynolds-average equations for electrostatic charged two-phase flows are set up, and the model…
根据雷诺时均方法，建立了荷电两相湍流的时间平均雷诺方程组，并对其中的脉动关联项进行了模拟。
According to Reynolds-average method, Reynolds-average equations for electrostatic charged two-phase flows are set up, and the model…
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