风切变

研究了无铰直升机在风切变场中的稳定性和操纵性。

In this paper , the stability and control of a hingeless helicopter in wind shear were investigated .

水平温度梯度形成较强的斜压性是形成边界层风切变的主要原因。

The baroclinity formed by the horizontal temperature gradient is the main reason for the formation of the wind shear .

当飞机在遭遇Caution级风切变时，飞行员应注意保持空速和航迹。

The pilot need to be more careful and need to maintain flight path when encountering caution level windshear .

基于Prony模型的低空风切变快速检测算法

Low-level Wind Shear Detection Algorithm Based on Prony Model

高能高湿的不稳定能量、低层辐合、强的垂直风切变的存在，利于强对流形成并诱发中尺度对流系统MCS；

The favorable environment condition of developing MCS is formed in instability of high energy and high wet , heavy vertical wind shear ;

垂直风切变中的CISK

CISK with the vertical shear of wind

系统以气溶胶为探测目标，采用基于Fabry-Perot标准具的双边缘直接探测技术和PPI扫描模式实现微尺度风切变场的探测。

The system uses aerosol as detecting target , using Fabry-Perot etalon based dual-edge direct detection technology and PPI scan mode to achieve microscale wind shear-field detection .

根据风切变对飞机飞行影响的机理，以及FAA对CATⅠ类着陆最坏条件下的边界要求，推导了风切变的危险程度判据。

A simplified windshear hazard criterion is developed in this paper , based on the mechanism of the effects of windshear on aircraft flight and the CAT I worst landing limits specified by FAA .

利用广州白云机场多普勒天气雷达和地面自动站资料对MCC内部的飑线进行实时监测分析，得到由飑线和下击暴流产生的低空风切变对机场的影响情况。

A squall line in MCC was monitored by using Doppler radar and AWOS , and the value of low-level wind shear was calculated to provide for Guangzhou Baiyun airport .

分别采用Navier＿Stokes方程和镜像对称的方法，对机场区域附近发生低空风切变时所形成的三维流场进行了数值模拟；

With the methods of Navier-Stokes equation and the symmetrical mirror image , the numerical simulation is carried out about the three-dimensional fluent field produced by the low-level wind shear nearby airports ;

从模拟结果来看，前视风切变气象雷达可提前50～78s进行危险风切变告警，符合NASA和FAA提出的前视风切变探测系统要求。

From the simulated results , a dangerous windshear is detected 5O ~ 78s , so the radar performance meets the certification requirements proposed by FAA and NASA .

H-6飞机在低空风切变中的动态响应特性和下滑航迹的研究

Characters of dynamic response with near-ground wind shear encounter and research of flight trajectory of H-6 aircraft

从Brunt-Vaisala频率N和水平风切变计算的Richardson数Ri剖面也显示出季节差异，Ri<1/4的动力不稳定区出现在夏季，而Ri>0.4的稳定区出现在冬季。

Richardson number Ri calculated from Brunt-Vaisala frequency N and horizontal wind shear S also reveals seasonal difference : dynamically unstable regions of Ri smaller than 1 / 4 are observed in summer , whereas stable regions of Ri larger than 0.4 are observed in winter .

FNL资料分析表明，在锋区内存在1个较大的水平温度梯度带，水平风切变明显。

According to the FNL ( Final Analysis ) data , the cold front was found to have a typical horizontal and vertical structure with a maximum temperature gradient and obvious wind shear .

低空风切变中直升机纵向运动特性分析

Analysis of the Helicopter Longitudinal Motion Characteristics in the Low-Level Windshear

最大风速和风切变图深切而博大的关怀。

Maximum wind and shear chart A great , enormous solicitude .

垂直风切变对风暴云影响的数值模拟

A numerical simulation of vertical wind shear influence on storm cloud

风切变中飞行能量高度分析及反馈

The total energy analysis and feedback of aircraft flight in windshear

我国第一套机载前视式红外低空风切变探测/告警系统

An Airborne Predictive IR Windshear Detection / Warning System in China

机载前视式风切变探测、告警系统的发展

Status of airborne forword looking windshear detection and warning systems

讨论了在风切变下着陆进场的特性和驾驶技术。

Landing approach characteristics and pilot techniques on the windShears are discussed .

机载前视风切变雷达信号处理方法分析

Analysis of Signal Processing Technology of Airborne Forward-looking Windshear Weather Radar System

机场附近低空风切变的数值模拟预测

Numerical Simulation of Forecast for Low-Level Wind Shear Near Airports

飞机穿越风切变时的地速/空速控制

Ground-Speed / Air-Speed Control of Airplane During Penetration of Windshear

风切变对农业飞机低空飞行特性影响的研究

Effects of near-ground horizontal wind shear on an agricultural airplane

中层小尺度风切变的观测

Observations of small scale wind shears in the mesosphere

随着风切变的增大，连续谱发生重叠。

The continuous spectrums occur to overlap with the increase of wind shear .

浅析低空风切变及其探测技术

A Brief Analysis on Low-Level Windshear and Detection Technology

风切变对航空的影响及其预报时效分析

Impact of windshear upon aviation and its predictable scale

一次低空水平风切变的小尺度特征分析

Analysis of a Small-scale Low Level Horizontal Wind Shear Process over Qingdao Airport