尾流

The wake survey cannot be used to measure the drag of stalled airfoil or of airfoils with flaps down.

尾流测量不能用来测量失连状态下的冀型或襟翼偏转后的翼型阻力。

The frequency and amplitude of wake force were deduced theoretically, while the influence of stator sector distribution and stator vane quantity on the wake force of vane was also discussed. Transient analysis was conducted for the forcing response of rotor blades under the same stator sector distribution and different quantities of stator vane, so an optimum asymmetry stator mistuned design was developed.

对不对称静子叶片非谐情况下激振力频率幅值进行推导，讨论了静子扇区分布和静叶数目选取对尾流激振力的影响，并对相同扇区分布不同静叶数目情况下转子叶片的强迫响应进行瞬态分析，给出不对称静子非谐设计的最优方案。

Main advances of research on vortices in pump sumps;2. Based on flow field analysis,it shows that owing to the wakes behind the upstream suction pipe,the downstream flow becomes more turbulent and appears with obvious free-surface vortices and submerged vortices in complicated movement.

本文在玻璃水槽内对不同管间距条件下的吸水管周围进行了大量的PIV流场量测实验，通过流场分析显示，上游吸水管的尾流作用加剧了下游吸水口的水流紊动强度，流场多处出现表面旋涡和水内旋涡，其运动形态复杂多变。

His main problem was that his in-lap speed was determined by Schumacher's, up ahead, and only at the last second could he duck out of the Ferrari's slipstream and head down the pit lane.

他的主要问题是他的进站圈的速度取决于舒马赫的速度，只有到最后一秒他才能从法拉利的尾流中摆脱出来进入维修区。

The hydrodynamic performance and the calculation of induced velocity along flow on the constant point after foil shows that if the effects of tip vortex and decay of vortex panel strength be considered, the accuracy of calculation can be increased. Velocity peak value in propeller wake current and distribution of induced velocity after three-dimensional short foil else can be calculated accurately.

通过对三维短翼的水动力性能和翼后给定点沿流向的诱导速度计算表明：采用考虑翼梢涡影响和涡的衰减影响的计算模型，可以提高三维短翼的水动力性能计算精度；可以准确地计算出螺旋桨尾流场的速度峰值；可以较好地计算出三维短翼翼后的诱导速度分布。

This paper does numerical simulation research of RED-FLAG CA774 and gets the structure of whole outer flow-field and trailing vortices.

对红旗CA774轿车进行了数值模拟，得到了整车的流场结构和尾流场的涡系结构。

Jet vane is a way of achieving thrust vector control. However, solid rocket motors in the wake of the jet vane work will inevitably cause a degree of thrust loss, this will lead to decline SRM performance and shorten missile range.

燃气舵是实现推力矢量控制的一种方式，但在固体火箭发动机尾流工作中的燃气舵不可避免的造成一定程度的推力损失，导致发动机性能下降和导弹射程减小。

A mathematical representation of the aerodynamic effects in close formation flight is presented.

针对近距编队飞行面临的相互气动影响问题，采用等效气动效应法建立了尾流气动影响的等效模型。

First, free wake analysis was carried out to calculate the rotor wake geometry and the downwash around the engine jet space.

首先应用自由尾流分析技术来计算旋翼尾迹和发动机绕排流空间的洗流速度。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了