尾流

有时海豚在船的尾流中嬉戏。

Dolphins sometimes play in the wake of the boats .

航行一直很顺利，直到他们碰上了商船的尾流。

The ride was smooth until they got into the merchant ship 's wake

它们巨大的尾流在水底翻起波浪，导致这些具有数百年历史的建筑的根基松动。

Their massive wake creates waves at the bottom of the sea , weakening the foundations of the centuries-old buildings themselves .

飞机尾流X波段雷达散射特性的实验研究

Experimental Study of X-Band Radar Scattering Characteristics of Aircraft Wake Vortices

H3~+团簇通过碳膜的负离子产额测量及尾流效应的研究

Study on the yield of Negative Ions and Wake Effect of H_3 ~ + Clusters Through Carbon Foils

应用短时Fourier变换对尾流光学信号分析

Analyzing Signal Applying Time-dependent Fourier Transform

2通过水槽试验资料分析，论述比较了恒定均匀流摩阻流速u的各种研究方法，其取值将直接影响卡门常数κ、积分常数a或b、尾流系数∏及悬浮指数z等参数。

Various methods to determine the friction velocity u in steady uniform flows are analyzed and then compared based on experimental data .

优化脉冲间距的多脉冲尾流加速PIC模拟

PIC simulation of the wake field accelerator driven by multiple-pulse with optimized intervals

网络随机接入ON-OFF重尾流的准入控制研究

Research on Call Admission Control of Stochastic Accessing ON-OFF Heavy Tailed Flows

飞机尾流的频域CFAR检测性能分析

Analysis of Frequency-domain FAR Detection Performance for Aircraft Wake Vortex

一种新的组合自由尾流/CFD方法用于悬停旋翼流动的CFD解中以考虑实际尾流的作用。

A new combined wake / CFD methodology is used to include realistic wake effects in CFD solutions for the rotor flow in hover .

实验中利用高速CCD相机拍摄模拟尾流图像。

The high-speed CCD camera is used to acquire the images of simulating ship wake , the velocity of bubbles in the ship wake is computed from image post-processing .

同对叶片实体建模的CFD方法相比，致动线方法在对非定常工况进行模拟时更节省计算资源，并且能够给出详细的尾流流场。

Compared with full CFD method , the actuator line method saves computational resources during unsteady cases , and can give details of flow field in wake .

为研究舰载飞机进舰着舰过程中航空母舰尾流的影响，选取了一个尾流模型在微机的MATLAB环境中模拟其速度的空间分布。

A model of carrier air wake is selected to simulate the spatial distribution of velocity of air wake in MATLAB on a PC for study of environmental effects on approaching and landing of the carrier base aircraft .

目前版本的Vega只能通过海洋模块仿真海面以上的场景，如波浪、舰船尾流等。

The current version of Vega Marine module could only generate the offshore scene effects , such as wave , ship trail and so on .

发现变k模式的k值与coleman尾流强度系数∏之间存在一一对应的关系，并推导了这一数学关系。

It is found that the Karman coefficient of varying k and wake flow strength coefficient of Coleman have a one to one relation . This mathematical relationship is derived from two velocity distribution equations .

采用剪应力模型（SST）进行数值计算，捕获到了高层建筑尾流的漩涡脱落现象，并与风洞试验数据做了比较。

The vortex shedding phenomena were captured by numerical simulation with shear stress transport ( SST ) turbulence model . The comparison between numerical simulation and wind tunnel test was given .

高Re数（10~4）下实验所观察的平面尾流中粒子弥散的特征结构已经被采用离散涡方法所得结果再现（Tang，etal1992；Yang，etal2000）。

Experimental particle dispersion patterns in a plane wake flow at a high Reynolds number ( 10 ~ 4 ) have been predicted numerically by using discrete vortex method ( Tang , et al 1992 ; Yang , et al 2000 ) .

当尾流撞击频率为1000Hz时压气机性能有所恶化。

However , the exciting frequency of 1 000 Hz worsens compressor performance .

从化学非平衡NS方程或其简化形式（粘性激波层方程、PNS方程）出发，求解高超声速再入体的绕流和底部尾流流场。

In this paper , the flows over hypersonic vehicles and their wake flows are simulated numerically based on the Navier-Stocks equations with chemical source terms or the simplified form of them ( VSL equations and PNS equations ) .

应用平面激光诱导荧光（PLIF）技术观测了水槽中半圆柱形及正弦形半岛后紊动尾流的瞬时浓度分布。

The instantaneous concentration distribution of the turbulent wakes behind semicircular and sinusoidal peninsula in experimental flume are measured by applying planar laser induced fluorescence ( PLIF ) technique .

为了开发尾流自导及其对抗技术，法国DCN船舶制造集团公司已对舰船尾流进行了15年的研究。

France DCN Armes Sous Marines ( DCN ASM ) has dedicated for more than 15 years a part of its research activities to wake study in order to develop wake homing torpedo and corresponding countermeasures technology .

分析了水面舰船尾流的特征。舰船尾流光特性可分为尾流Kelvin波的光散射、尾流微气泡的光散射和尾流激发的生物荧光。

The characteristics of ship wake were analyzed , and the light characteristics of ship wake were divided into light scattering of Kelvin waves of ship wake , light scattering of bubbles in ship wake and bioluminescence excited by ship wake .

由于涡脱落激励中复杂的结构与尾流相互作用，使振动方程具有非线性的时间与频率混合项，为此本文推导了时频域混合变换的AFT方法计算涡激振动的时程响应。

An Alternating Time Frequency ( AFT ) domain method is developed to solve the assembled equations of motion in order to account for the mixed non-linear time-frequency terms that are evoked by the complex wake-structure interaction process in vortex-shedding excitations .

但考虑了前面杆件尾流的影响后，最大振幅减小到25cm。

If the front hanger wake effect takes into account in a two-hanger system , the maximum amplitude of the rear hanger reduces to 25 cm .

采用数字粒子图像测速（DPIV）技术，在长30m、宽35m、高1m的水槽中比较系统地量测了浅水中绕平板岛屿的尾流区流场。

The digital particle image velocimetry ( DPIV ) is employed to study the flow field around a solid plate in shallow water . The experiments are carried out in a flume with 30 ? m long , 3.5 ?

尾流区温度高于滞止区温度，表明在滞止区有未完全燃烧的中间产物存在，在尾流区发现C2及CH的光谱也证明了这一点。

The flame temperature in wake region is higher than that in stagnation region . This means there are intermediate products that did not burned completely in the stagnation region . It is proved by emission spectra of C 2 and CH 4 in wake region , too .

通过对立管振动微分方程和Matteoluca尾流振子方程的解耦，并采用Hermit插值函数进行离散，得到其有限元表达式，采用Newmark时程分析法进行求解。

After the coupled equations of the partial differential equation for the response of the marine riser and the wake oscillator equation are unbounded and discretized by Hermit interpolation function , the Finite Element expression can be obtained and solved by Newmark time-procedure method .

分析了在均匀密度分层环境中潜艇热尾流中程和远程的浮升特性，并进行了数值模拟，发现Grashof数对热射流的影响十分显著。

In this paper the floating rule of mid-range and long-range submarines ' thermal jet wake in well-distributed density area and layered density area is analyzed , and numerical value is simulated , we find Grashof is a very obvious effect on thermal jet wake .

通过12组方案的实验，当尾流撞击频率为2000Hz和4000Hz时，对压气机失速裕度的改善最为明显，相对增量分别达到19.5%和15.2%；

Through 12 wake effect disturbance coupling experiments , the stall margin was improved significantly at the wake effect frequencies of 2 000 Hz and 4 000 Hz , and the relative increase of surge margin reached 19.5 % and 15.2 % respectively .