However, when the airflow is turbulent, the boundary layer sticks to the ball for longer.
然而，当气流为湍流时，边界层维持时间较长。
As a result, roughly half the fuel required to maintain a level cruise is being burned to overcome the drag imposed by a turbulent boundary layer.
因此，保持巡航速度消耗的燃料大约一半都是用于克服紊流产生的阻力。
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。
Three-dimensional turbulent boundary layer on the ground board is measured through the ground effect tests of a delta wing with aspect ratio 3.
本文通过一个展弦比为3的三角形机翼的地面效应试验，测量了地板上的三元紊流附面层。
The time-height variation of turbulent intensity in the inversion layer is incontinuous, the transfer of momentum and heat is gusty with time and sandwich with height.
逆温层内部湍流强度的时-空变化是不连续的，动量和热量的输送在时间上是阵性的，在高度上是分层的。
In this paper, the investigation of the variations of the peak power and phase Angle of a laser beam passing through a turbulent shear layer is discussed.
本文论述一个由流体力学和光学联系起来的新课题——激光通过湍流剪切层后的相位变化及峰值功率变化。
The result shows that the new model can simulate the turbulent structure and the cloud microphysical processes of the marine stratocumulus-topped planetary boundary layer.
数值模拟结果表明，该边界层模式能较合理地模拟海区层积云覆盖的边界层微湍流结构和云微物理过程。
The turbulent characteristics in convective boundary layer topped temperature inversion were numerically investigated in terms of large eddy simulation.
采用大涡模拟方法研究了存在逆温层的情况下大气对流边界层的湍流特性。
It is shown by calculation and analysis that the main form of the interaction in compressor cascades is the interaction between shock wave and turbulent boundary layer in channels.
作者经过计算和分析，说明压气机叶栅流中主要的相互作用形式是叶栅槽道中激波和湍流附面层的相互作用。
A method is proposed to calculated the incompressible three-dimensional turbulent boundary layer on both wall surfaces of vaneless diffusers.
提出了一种计算无叶扩压器两壁面上不可压缩三元紊流附面层的方法。
Using observational data of the turbulent gradient, exchange characteristics of the momentum in the plant canopy layer (CL) are studied in detail.
使用湍流梯度测试资料，对植物冠层动量交换特征进行了详细研究，结果表明；
It shows that the boundary layer induced behind a 2 ATM 2h2 + O2, mixture detonation wave may undergo a transition from laminar to turbulent and then turn out a turbulent boundary layer.
值得指出的是，2大气压下2h_2 + O_2气体爆轰波后诱导引起的附面层可能经历着从层流向湍流的转捩，而后成为湍流附面层。
In this paper, some characteristics of turbulent exchange in surface layer, the austausch coefficient, heat flux transfer, etc.
本文对于北京冬半年近地面层湍流的特性：湍流系数及湍流热通量等，用各种方法进行计算和比较。
Like in an infinite flow, we find that laminar boundary layer, transition region and turbulent boundary layer also exist along a flat plate in open channel flow boundary layers.
试验研究发现明流光滑平板边界层中，与无限边界绕流平板边界层一样，沿平板有层流边界层，转捩区和紊流边界层三部分。
To offer a theoretical foundation for chemical equipment design, three-dimensional numerical simulations are made for compressible turbulent mixing shear layer based on large eddy simulation(LES).
为了加深对复杂流动混合现象的认识，为化工设备设计提供理论基础，用大涡模拟方法对可压缩气体混合层进行了三维数值模拟。
An integral method associated with direct and inverse mode is presented for the calculation of compressible turbulent boundary layer with separations over airfoil.
本文介绍了一种求解二维可压缩紊流分离边界层的正反积分方法。
The shocklet was observed based on NPLS techniques in supersonic turbulent mix layer wind tunnel with convective Mach number 1.24.
在对流马赫数为1.24的超声速湍流混合层风洞中，以NPLS实验技术为基础观察到了小激波结构。
And further, the relationship among the statistical parameters of turbulence, turbulent fluxes in the near surface layer and at the top of the boundary layer are established.
进一步建立了局地湍流统计量同近地面层和边界层顶湍流通量之间的关系。
A unified theory for calculating the noise radiation of an infinite elastic plate excited by turbulent boundary layer pressure fluctuations is presented.
本文提出一个统一的理论计算湍流边界层压力起伏激励下无限大弹性板的噪声辐射。
The coherent structure of turbulent boundary layer is the most important discover and the most interesting problem of turbulence research in the last several decades.
紊流边界层拟序结构，是近几十年来紊流研究中最重要的发现，也是目前紊流研究中的一大热点问题。
To do this we simply used an adjustment layer with a "turbulent displace" filter applied, masked only where we needed.
为了做到这一步，我们简单使用了带有“剧烈置换”过滤器的修正层，只将我们需要的部分进行遮罩处理。
The influence of a viscoelastic compliant wall on the turbulent boundary layer was studied from the viewpoint of stability.
本文从稳定性的观点出发，研究了粘弹性柔性壁对湍流边界层的影响。
The transitional primary dynamical processes, which were constructed in the experiment in a transitional boundary layer, were used to make further analysis on the turbulent cascade patterns.
利用在边界层转捩中逐渐建立起来的主要动力学过程，对湍流级串概念做了进一步的分析。
In the paper, the authors use it to study the hydraulic problem, for example, to analyze the laws of the velocity distribution of turbulent boundary layer, open-channel water flow, etc.
本文将其应用到水力学问题中，分析了紊流边界层，明渠水流等问题的速度分布规律，得到了与前人一致的结果。
The characteristic parameters of fluid during the transition in boundary layer are obviously different from that of the laminar flow or the turbulent flow.
边界层转捩流动的特征参数明显不同于层流或湍流，转捩流动的这些特征直接影响着流体的动力、传热特性。
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.
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。
The results indicate that coating a compliant wall makes the logarithmic region of a turbulent boundary layer shift upwards as unstable hydrodynamic waves are absent.
这说明，在没有水动力学不稳定发生的情况下，柔性壁会使湍流边界层中速度型的对数区上移。
Finally recent studies of turbulent boundary layer separation are also briefly reviewed.
最后简单介绍了目前在研究湍流边界层分离方面的进展。
The theoretical model of the coherent structure in the wall region of a turbulent boundary layer was proposed, using the idea of general resonant triad of the theory of hydrodynamic stability.
利用流动稳定性理论中的一般共振三波的概念，提出了湍流边界层近壁区域相干结构的理论模型。
Dissipative, Taylor, shear and integral scale are calculated, and the relationship between them and vertical locations in turbulent boundary layer are obtained.
同时计算了耗散尺度、泰勒尺度、剪切尺度和积分尺度等特征量，并给出它们沿平板湍流边界层法向位置的变化规律。
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