Mean velocity profile, turbulence intensity profile, integral scale and wind spectra are the most fundamental characteristics that describe the atmospheric turbulent boundary layer flow.
平均速度剖面,湍流度剖面,积分尺度和风谱是反映大气湍流边界层流动的四个最基本的因素。
It is suggested to use the concept of effective bulk velocity to calculate turbulence length integrate scale.
作者建议使用有效平均速度的概念来计算湍流的积分长度尺度。
This model focuses on the direct modeling of Reynolds stresses and utilizes split-spectrum concepts to model multiple-scale effects in turbulence.
这种模型对雷诺应力进行直接的模拟,并可模拟湍流流动的多重尺度影响。
In this paper, autocorrelation, space correlation, and integral scale of turbulence were discussed, using theory of turbulence statistics and field observation data.
本文根据湍流统计理论和野外观测数据,详细分析了林带背风面湍流自相关、空间相关和湍流积分尺度特征。
With the outer scale of turbulence increasing, the amplitude of low-frequency spectrum increases and the high-frequency is invariable.
随着等效湍流外尺度的增加,低频谱的幅值逐渐增大,高频谱保持不变。
The wind speed profile turbulence integral scale, and turbulence spectrum are simulated in the wind tunnel test.
风洞试验中对风剖面、湍流积分尺度及湍流谱作了模拟。
The influence of different altitudes, different sizes of the inner and outer scale of the turbulence on the scintillation index with Gaussian beam propagation in the slant path is discussed in detail.
讨论了不同传播高度、不同湍流内、外尺度对高斯波束斜程传输闪烁指数的影响。
The effect of the receiving aperture and outer scale of turbulence on the power spectrum of atmospheric scintillation was analyzed.
进而分析了孔径尺度和湍流外尺度对闪烁频谱的影响。
The higher flow capacity and reduced turbulence in the valve allow the barrel filling operation on the scale to be accomplished faster and with less splashing and waste.
流动性更好了,也降低了阀门内流体的紊乱,因此灌桶过程更快,溅出浪费也更少。
Plane and spherical waves in the cases of zero and non-zero turbulence inner scale are given as examples for illustration of the general behaviors of scintillation indices.
举例给出了有限湍流内尺度情况下平面波和球面波闪烁指数的通用表达式。
Finally, separation flow, secondary flow and multi-scale eddy structure are simulated, it indicates that SST model can give a good prediction of turbulence in the draft tube.
计算获得了分离流、二次流和多尺度旋涡结构,表明SST模型能很好地预测尾水管内的湍流流动。
The daily variations and probability of the inner and outer scale of turbulence were analyzed.
分析了湍流尺度的日变化规律,给出了其频数分布。
This means that grid turbulence can effectively suppress the large-scale vortex and coherent structure in the shear layer.
这意味着网格湍流能有效抑制剪切层中的大涡和拟序结构。
Firstly, the power spectral density function of refractive index is given including the effects of inner and outer scale of the turbulence.
首先,给出了包含大气湍流内,外尺度效应的折射率功率谱密度函数。
The effects of turbulence are modeled with a simplified subgrid-scale eddy viscosity.
湍流模型采用简化的亚网格尺度湍流粘性公式。
The effects of turbulence are modeled with a simplified subgrid-scale eddy viscosity.
湍流模型采用简化的亚网格尺度湍流粘性公式。
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