边界层
- boundary layer;bounding layer
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胡非。湍流、间歇性与大气边界层。北京:科学出版社,1995
HU Fei . Turbulence , Intermittency and Atmospheric Boundary Layer ( in Chinese ) . Beijing : Science Press , 1995 .
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层流边界层方程零解的稳定性分析
Analysis of the zero solution stability of laminar boundary layer equation
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层流边界层C型失稳研究
A Research of the C Type Instability in a Laminar Boundary Layer
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轴对称回转体的CFD分析及厚边界层理论计算
CFD Analysis and Thick Boundary Layer Theoretical Calculation on Axisymmetric Revolution body
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对流边界层中存在反梯度输送,因而K理论的应用受到限制。
Since the counter - gradient transfer may occur in the convective boundary layer K - theory is inadequate there .
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磁层顶边界层剪切流引起的MHD波模转化
Wave transformation induced by shear flow in the magnetopause boundary layer
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Mie散射激光雷达研究大气边界层特性
Study on the Characteristics of Atmospheric Boundary Layer by Mie Scattering Lidar
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T-S波与边界层尾缘相互作用的数值研究
A Numerical Study for the Interaction of T-S Wave and the Trailing Edge of Boundary Layer
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用三分量LDV测量壁湍流边界层
Measurements of Turbulent Boundary Layer on a Wall of Water Channel by 3D LDV
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SWT声雷达探测系统对大气边界层声回波信号的变换与检测
Transformation and detection of acoustic echo signals with SWT-TYPE SODAR probing system in the atmospheric boundary layer
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结合二维谐波的初始解以及均流变形,研究了非平行流边界层三维扰动H型非线性稳定性。
With the initial solutions of two-dimensional harmonic waves given by Landau expansion and the mean-flow-distortion calculated by the approximation equation , the three-dimensional H-type evolution problem of the nonlinear boundary layer stability is studied .
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在100m以上的边界层内,风速的月平均日变化显著,并且各月份的差异也比较大;
The monthly mean wind speed above 100m height has remarkable diurnal variation , and it has great difference among different months .
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针对变结构控制存在抖动的缺点,首次提出了用饱合边界层和自适应双神经元变结构控制器(AdaptiveVariableStructureControlwithTwin-neuron简称AVSCT)的设计方法,并将其应用于潜艇空间运动联合控制系统中。
In order to overcome the chattering phenomenon , a new approach with saturation boundary layer and adaptive variable structure control with twin-neuron ( AVSCT ) is proposed .
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用法福尔质量加权平均N-S方程及两方程湍流模型求解三维超声速平板湍流边界层流动;
The mass-weight averaging N-S equations are adopted as the governing equations of flow , and a two-equation turbulent model is employed .
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利用不同格式模拟扰动波在平板边界层中的传播,考察了格式对T-S波传播过程计算结果的影响。
The influence of the different finite difference schemes on the transmission of T-S waves in flat plate boundary layers and free shear flow was studied .
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对于位流问题,涡只存在于边界层内,可以导出边界层外缘处切向速度等于-x,x为涡强。
For potential flow , vorticity only distributes in the interior of boundary layer , then the tangential velocity at the outer edge of the boundary layer equals - χ, where χ is the strength of the vortex .
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根据退化解在(a,b)中是否有连续的一阶偏导数,研究了解的两种渐近形式,从而导出边界层和角层现象。
Depending on whether the reduced solution u ( t ) has or does not have a continuous first-derivative in ( a , b ), we study two types of asymptotic behavior , thus leading to the phenomena of boundary and angular layers .
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稳定边界层中Ekman螺旋的异常及湍流二阶矩的特征
A study of the extraordinary Ekman spirals and the characters of the turbulent second-order in the stable boundary layer
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将利用Stokes边界层理论计算得到边界上的阻尼与内阻尼之和作为晃动的等效阻尼,通过两个算例比较计算结果接近实验结果。
Boundary layer damping based on the Stokes theory is also integrated into the equivalent damping . Two examples are given and compared with the theoretic and experimental data .
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TJ-2风洞大气边界层被动模拟方法的研究
Research of Passive Simulation Method of Atmospheric Boundary Layer in TJ-2 Wind Tunnel
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提出结合多光束斐索(Fizeau)干涉仪和CCD探测器的条纹图像技术,测量地球边界层下的三维风场的直接探测多普勒激光雷达技术。
A wind direct-detection Doppler lidar system for planetary boundary layer wind measurement utilizing the fringe image technique combined of a multi-beam Fizeau interferometer and a CCD detector is proposed .
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介绍了在8m×6m风洞第一试验段(12m×16m)一种地形的大气边界层模拟装置的设计、风洞流场校测试验。
This paper discusses the boundary layer simulation in the first test section ( 12m × 16m ) of 8m × 6m wind tunnel .
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结果表明:(1)北京80m以上的边界层,冬季盛行西北气流,夏季盛行西南气流;
The results show that : It is dominated by the northwest wind in the winter but southwest wind in the summer above 80m height .
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结果表明,导致SO2浓度高,降水pH值降低,与本地区的工业及生活用煤含硫量高,地形特征,地理环境,以及行星边界层的气象要素场和大气层结有密切的关系。
Results show that the increase of the density of SO2 and the decrease of the pH value of precipitation are closely related to the high sulphur content of the coal , topographical features , meteorological elementary field and atmospheric nodule of the planet boundary layer .
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通过对1995年7月14日的大&暴雨天气过程所获取的3824多普勒天气雷达平均径向风场资料的分析,发现边界层急流(SE)与较强的降水相伴。
A rainstorm weather process on July 14 1995 with mean radial velocity data obtained from 3824 type Doppler weather radar was analysed . The boundary layer jetstream ( SE ) measured by the radar was accompanied by stronger precipitation .
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结果表明:在4m×3m风洞中建立的模拟大气边界层流场适宜于建筑物风荷载、风环境模型试验。
The results show model fields of atmospheric boundary layers built in 4 m × 3 m aeronautical wind tunnel are suitable to wind load and wind environment test of a building .
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对于无电磁搅拌的溶解过程,以Fe溶解于Al熔体进行了试验,得到了Fe的溶解量以及含17.35wt%Fe的熔体的扩散边界层厚度,与纯扩散理论模型预测值吻合。
The dissolving of Fe in Al melt with a resistance furnace was carried out to investigate the diffusion process . Dissolving quantity and melt diffusion layer thickness of melt containing 17.35wt % Fe were achieved . The experimental result is consistent to the theoretical model .
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悬对沙Mellor-Yamada海洋边界层模型计算结果的影响
Influence of suspended sand on calculation of Mellor-Yamada ocean boundary layer model
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根据膜渗透蒸发的串联阻力概念,把液相边界层传质的Sherwood模型计算值与实验测量的总传质系数相结合,得出了渗透蒸发的膜内传质系数。
According to the resistance-in-series concept for the membrane transport , and by combining the experimental measurements and calculations based upon Sherwood model , the transport coefficients were obtained .
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虽然YESA仅仅出现在大气边界层(ABL)中,但对我国黄海西北部海雾季节的开始具有重要影响。
YESA is confined in the atmospheric boundary layer ( ABL ) but highly influential on the onset of sea fog season on the Chinese coast .