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。
The problem is that since the increase in the gas content did not occur abruptly, there is no clearly discernible boundary layer.
问题是，气体含量的增加不是突然出现的，因此没有清晰可辨的边界层。
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。
Like carbon dioxide, black carbon absorbs sunlight and infrared radiation, trapping heat in the atmosphere — including the boundary layer closest to Earth's surface.
像二氧化碳一样，黑碳吸收阳光和红外线辐射，将热量滞留在大气中-包括最接近地球表面的边界层。
The internal flow fields in scramjet are very complex, due to the interaction of shock waves, expansion waves, boundary layer and strong reactions.
超燃冲压发动机的内部流场很复杂，存在激波、膨胀波、附面层和剧烈的化学反应等相互作用，给数值模拟带来很大的困难。
The boundary layer correction is needed for viscid drag.
为考虑粘性，需进行边界层修正。
The scheme can satisfy new air quality model's need for boundary layer parameterization.
该方案可以满足新一代空气质量模式对边界层参数化的需求。
Provide the experimental research scheme to measure and diagnose boundary layer of airfoil.
根据附面层流动特性，提出了附面层综合测量和诊断实验研究方案。
A lot of observational data on the atmospheric boundary layer over the plateau were obtained.
获得了大量的关于青藏高原大气边界层的宝贵资料。
The boundary layer behavior of a class of semilinear singular perturbation problem is studied.
研究了一类奇摄动半线性边值问题解的边界层性质。
The examples presented clearly show the effect of nonparallel flow on boundary layer stability.
通过算例，清楚地显示了流动的非平行性对边界层稳定性的影响。
And it was compared with the self organizing phenomenon in atmospheric convective boundary layer.
将它与大气对流边界层中的“大涡”自组织现象作了初步对比。
It is difficult to solve the problems of this kind numerically because of the boundary layer effect.
由于边界层效应，使得这类问题的数值求解十分困难。
The control of supercritical airfoil boundary layer separation is adapted using micro-vortex generators.
超临界翼型附面层分离控制适合采用微型涡流发生器。
Above some altitude within atmosphere layer, the boundary layer on after body will separate due to plume.
在大气层某一定的高度以上，火箭后体上的边界层将会由于羽流引起分离。
A new urban canopy model is developed and incorporated into the fine urban boundary layer prognostic model.
建立了一个城市冠层模式，并将该模式耦合在精细城市边界层预报模式中。
For incompressible boundary layer or plane channel flow, typical three-dimensional structures would appear.
对不可压缩边界层或平面槽道流，还会出现典型的三维结构。
The paper presents the principle of boundary layer control for submerged vortex generators of concave shape.
本文介绍了一种新型的凹型面埋入式涡流发生器的工作机理。
The temperature boundary layer of a natural convection along a vertical heated plate is measured quantitatively.
对沿竖直加热平板自然对流的温度边界层进行了定量地测量。
The theoretical analysis and experimental results show that boundary layer separation will produce pressure drag.
理论分析和实验的结果说明：边界层分离将引起压差阻力。
As soon as the cold air flows along a hot plate model, the interferometric fringes bend inside the boundary layer.
当冷空气流经热板模型时，附面层内的干涉条纹发生弯曲。
NPLS images at high spatiotemporal resolution reveal shockwave, expansion wave, boundary layer and wake in the flow.
高时空分辨率的NPLS图像再现了激波、膨胀波、边界层及尾迹等流场结构。
In this paper, an interactive model between land surface physical process and atmosphere boundary layer is established.
建立了一个研究荒漠下垫面陆面物理过程与大气边界层相互作用的模式。
Concentration boundary layer is an important subject in discussion of interfacial transfer phenomena in crystal growth.
浓度边界层是晶体生长过程中分析界面输运现象的重要元素。
It has been found that the boundary layer resistance is related with not only its thickness but also its formation process.
发现边界层阻力不仅和其厚度有关，还和其形成过程有关。
The result shows that the boundary layer radial vortex becomes an important factor for causing compressor flow instability.
结果表明，附面层径向涡是该压气机转子流动失稳的一个很重要的原因。
Compared with those obtained by linear stability theory, the situation is similar to those for incompressible boundary layer.
与线性稳定性理论的结果相比，二者的关系和不可压边界层的情况相似。
The results show that under shear stresses there are a group of boundary layer solutions near the interface or the fixed boundary.
结果表明，在剪应力作用下，在界面附近和固定边界附近存在一组边界效应解。
With different boundary layer schemes, the simulated divergence fields differ, which affects the performance of the rainfall forecast.
不同边界层方案模拟的辐散场有一定的差别，导致了降水的不同预报效果。
According to the analysis on the boundary layer separation condition, parameter equation of vane curve for centrifugal pump is established.
通过对压力面边界层分离条件的分析得出叶片型线方程并给出计算实例。
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