Moreover, in some cases a pilot might wish to do the opposite and promote turbulent flow-for example, when slowing down.
此外，相反，在某些情况下飞行员更愿意产生紊流——例如，减速时。
As a soccer ball slows down after it's kicked in the air, the air flow around it changes from turbulent to smooth.
当球在空中速度减慢时，周围的气流从湍流变为稳定的层流。
The flow of air over the surface of the ball was turbulent, which gave the ball a relatively low amount of drag.
球的表面流动的空气形成湍流，这使得球的阻力相对较低。
In order to study the fuel mass flow rate regulation characteristics of tube-in-hole for solid fuel ramjet, the flow field of turbulent combustion was numerically analyzed.
为了研究固体燃料冲压发动机内部套管结构调节燃料流量的特性，对某模型发动机的湍流燃烧流场进行了数值分析。
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。
The ball and the flow around namely the flow around the sphere of turbulent flow and unprecedented turn phenomena.
这与球体绕流(即绕球体的流动)的湍流转捩及分离流现象有关。
The other is about the calculation and experiment of the two-dimensional unsteady turbulent flow in an exhaust manifold.
二是对排气管的二维不稳定湍流流动进行了计算和实验研究。
The stochastic turbulent field is represented by a set of random Numbers with a pre - set covariance simulating the Reynolds stress in a turbulent flow.
通过采用一组预置协方差的随机数模拟雷诺应力来表示随机的湍流流场。
Should be aware that the flowers in the aroma of the total will not have too much decoration Yan, calm autumn contains a mature power, and the turbulent flow will eventually be translated into calm.
应该知道，花儿中芳香的总不会有太艳的装饰，平静的秋色蕴含着成熟的力量，而流水的动荡不安终会化为平静。
Threaded seat rings for valves in services with high velocity turbulent flow or thermal cycling should be lock welded to the body to avoid loosening. Please specify.
如果阀门用在高速流体(湍流)或热循环应用环境中，则螺纹阀座环应该锁焊到阀体上，避免松落。请在订购时加以指定说明。
To find an optimal control strategy in theory, the optimal control in turbulent channel flow has been studied by direct numerical simulations in present paper.
为了找到一种理论最优的控制方案，本文以槽道湍流为例对壁湍流减阻的最优控制方案进行了相关研究。
The flow characteristics of inner flow field of turbine are computed with three-dimension incompressible continuous equation, momentum equation and turbulent kinetic-dissipation equation.
采用三维不可压紊流的连续方程与动量方程和紊动能与耗散率方程对内部流场进行研究计算。
When the Reynolds number for Bingham fluid is larger than a certain value, the flow will transfer from the laminar state to the turbulent state as Newtonian flow does.
和牛顿流体一样，宾汉流体的雷诺数超过一定值后，其流动将从层流向紊流过渡。
IFA300 isothermal HWFA is used to measure and study the turbulent flow in hot air channels of a heat exchanger.
采用IFA300恒温式热线风速仪对换热器热气通道内的湍流流动进行了测试研究。
The computation of streaming electrification in turbulent oil pipe flow is studied in this paper.
对紊流条件下输油管道内油流静电带电的计算进行了研究。
Hot wire measurements and flow visualization are presented for studying the turbulent flow field over a flat gas turbine film cooling blade with lateral expanded holes.
报道了用热线风速仪和流动可视化技术对带有横向扩展型孔的燃气轮机气膜冷却叶片紊流流场进行的研究。
Looking at the pictures to be buried in the turbulent flow in me, and those who face a loss as to rush the passer.
看着照片上被埋没在汹涌人流中的我，和那些匆匆的路人一样表情茫然。
A high accuracy numeric analysis scheme is adopted to survey the two dimension axisymmetric, viscose, turbulent flow equations.
采用高精度数值分析格式，对二维轴对称、粘性、湍流流动方程进行研究。
This new method is compared with classical one and the writers point out the advantage of zinc powder full suspend in the turbulent flow of electrolyte.
将这个新方法与经典的方法比较，并指出在湍流状态的锌粉全悬浮的优越性。
The turbulent flow field within dynamic hydrocyclone was simulated by means of RSM model.
采用雷诺应力模型对动态旋流器湍流流场进行模拟。
In order to intensify the collision among the inhalable particles, a gas-solid jet flow was introduced into the agglomeration chamber to generate a local turbulent flow field.
团聚室中引入气固射流，使团聚室内形成局部湍流，强化颗粒间的碰撞。
Based on the distribution of instant velocity, fluctuating velocity and average velocity, the flow status of turbulent flow is analyzed.
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。
The turbulent flow in a hydrocyclone is predicted numerically using a Reynolds stress model, and the numerical results agree well with experimental data.
本文采用雷诺应力模型计算了水力旋流器的水相湍流流场，计算结果与实验数据吻合很好。
The airflow in subway station is complicated three-dimensional unsteady turbulent flow.
地铁车站内的空气流动是极其复杂的三维非稳态湍流流动。
Because of the complexity of turbulent flow, it is a tough issue to determine its friction factor.
鉴于紊流运动的复杂性，其沿程阻力系数确定起来较为困难。
Finally, the agglomeration of fine particles in turbulent flow was studied experimentally by using an agitated vessel.
最后，在搅拌容器中试验研究了湍流中微细粒子的聚集行为。
The physical properties, as expressed in momentum and force, and energy and work, of turbulent flow are explained in detail.
关于不可压缩紊流的物理性质在动量和力及能量和功方面加以详细的解释。
The physical properties, as expressed in momentum and force, and energy and work, of turbulent flow are explained in detail.
关于不可压缩紊流的物理性质在动量和力及能量和功方面加以详细的解释。
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