下击暴流

微下击暴流的简化数学模型

A simplified mathematical model of micro - downburst

下击暴流的数值模拟研究

The modeling study of downburst

基于WRF模式的下击暴流数值模拟

The Numberical Simulation of Downburst Based on WRF Model

基于改进的OBV模型的下击暴流风荷载模拟

Numerical simulation of downburst wind loads based on modified OBV model

近年来，伴随计算机科学技术的迅猛发展，CFD数值方法已逐渐成为结构风工程界研究下击暴流近地风场及风剖面特征的主要方法。

In recent years , accompanied with rapid development of the computer science and technology , CFD numerical method has gradually become the main method of researching downburst wind field and wind profiles in structural wind engineering field .

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 .

WINDEX是1994年McCann提出的预报下击暴流潜势的一个新指数。

WINDEX is a new index presented by McCann in 1994 for the forecast of the downburst potential .

通过分析2001年7月2日的一次强雷暴带来的下击暴流，发现WINDEX在我国某些地区（例如济南）可能有一定用处，值得进一步尝试。

Based on the analysis of a downburst event brought by severe thunderstorm on 2nd July 2001 , it is found that WINDEX is a helpful index in some regions and is worthwhile to try farther .

西北干旱区一次下击暴流天气过程分析

Analysis of a Microburst weather process in Arid Area of Northwest China

带有机动襟翼的飞机在下击暴流中的特性分析

A study of characteristics for an aircraft with maneuver flaps in downburst

一次强雷暴阵风锋和下击暴流的多普勒雷达特征

Analysis of a Strong Gust Front and Downburst with Doppler Weather Radar Data

武汉6·22空难下击暴流的三维数值模拟研究

A Numerical Study of the Airplane Disaster-Producing Microburst on 22 June 2000 in Wuhan

飞机穿越微下击暴流风场进场着陆运动特性

Dynamic qualities of airplane landing under downburst

飞机穿越微下击暴流风切变的智能控制

Intelligent Control of Airplane under Microburst Windshear

一次宏下击暴流的雷达回波特征分析

Doppler radar echo features of a Macro-downburst

含湍流可变向微下击暴流的建模

A Variable-Orientation Model of Microburst with Turbulence

下击暴流实例分析

Real Example Analysis of Downburst

实际上缺乏下击暴流高分辨率资料，是本课题的一个重要难点。

In fact , the lack of high-resolution data of downburst is a major difficulty in this topic .

结果表明，提出的建模方法能够更好地反映出飞机穿越微下击暴流的动态特性。

The results show that the fuzzy logic model can display the dynamic qualities of the airplane well .

多普勒天气雷达以其高时空分辨率成为监测和预警下击暴流的有力工具。

Doppler radar plays important roles on monitoring and predicting downbursts for its high temporal and spatial resolution .

其中，试验室物理模拟只能获得类似下击暴流的简单流场，且费用较高。

The physical simulation in laboratory can only get simple flow field similar to downburst and costs highly .

另外，遗传算法的应用对已设计的模糊逻辑控制器进行了优化，进一步改善了飞机穿越微下击暴流的性能。

In addition , genetic algorithm optimizes the design of the controller and the airplane performances are further improved .

采用模糊逻辑控制器，可使得飞机在穿越微下击暴流风场时具有较好的改出性能；

By using the fuzzy logic controller , the airplane can recover from a microburst windshear with the better recovery qualities .

基于多普勒天气雷达的风暴识别与设计一次强雷暴阵风锋和下击暴流的多普勒雷达特征

Storm Identification and Design Using the DWR Data ; Analysis of a Strong Gust Front and Downburst with Doppler Weather Radar Data

本文根据目前所掌握的资料，对下击暴流的基本特征、形成机理、下击暴流对飞行安全的影响及防范措施作了简要的归纳介绍，以利于飞行和气象人员保障飞行安全。

The basic characteristics , forming mechanism , effect of the downburst on flying safety and adoptable measure are briefly introduced in this paper , on purpose to give support to flying safety for pilots and weathermen .

如今，下击暴流作为高耸构筑物破坏（特别是输电塔倒塔）的一个重要天气原因，已经引起了世界风工程领域的广泛关注和研究。

Today , the downburst regarded as one important weather reason for destruction of tall buildings ( especially for damage of transmission tower ), has aroused world wide attention and research in the field of wind engineering .

6.22个例失败的原因很有可能是该下击暴流的发生并没有很显著的强对流中尺度系统做背景，而模式将一些扰动平滑掉，造成最后模拟的失败。

The reason for the failure of the case " 6.22 " is most likely that the downburst did not occur in the background with very significant mesoscale convective system , and the model smoothed out some of disturbance .