前飞

前飞状态涵道尾桨气动特性CFD分析

CFD Analysis for the Ducted Tail Rotor in Forward Flight

通过求解Euler方程数值模拟了直升机旋翼前飞非定常流场。

A new numerical method has been developed to model the unsteady flow around a helicopter rotor in forward flight using Euler equations .

用Newton子迭代方法计算前飞旋翼粘性绕流

Numerical simulation of the viscous flow past a helicopter rotor in forward flight using newton-like sub-iterations

这也是他几个月前飞到曼谷参加CFA考试的原因。

Which is why he flew to Bangkok a few months ago to take the CFA exam .

本文结合CFD（计算流体力学）技术与气动噪声时域理论，求解直升机旋翼悬停和前飞流场及流场气动噪声。

Combining CFD technology and aeroacoustic theory in time domain , the high-speed impulsive ( HSI ) noise of helicopter rotor in hover and in forward flight was predicted and investigated .

运用matlab软件设计图形用户界面GUI，进行了无人直升机不同前飞速度下配平计算仿真研究，讨论了不同参数对配平结果的影响。

The simulation results of trimming calculation under the different flight velocity condition is conducted . The effect of trim results from different parameters is discussed . Graphical User Interface is designed using Matlab tool software .

等拉力系数配平前飞时，旋翼各操纵角～前进比曲线和前飞需用功率～前进比曲线与德国宇航院（DLR）的试验结果比较一致。

In hover , and rotor control angles and power required versus advance ratio in forward flight with constant thrust coefficient at trim condition .

为了获得施旋翼／机身的气动力干扰概念，利用BO－105旋翼模型和Z－9机身模型在气动中心8米×6米风洞进行了悬停及前飞实验。

In order to have knowledge of aerodynamic interactions between a rotor and fuselage , a BO-105 rotor and Z-9 fuselage were tested in hover and forward flight in 8m × 6m wind tunnel of CARDC .

为表明方法的有效性，分别以UH－1和H－34两种直升机旋翼为算例，计算了不同前飞状态的自由尾迹形状，展示出小速度时尾迹畸变和叶尖涡卷绕的重要特征。

As examples , the calculations on free wake of UH 1 and H 34 rotors are performed for different advance ratios , and the feature of highly distorted free wake shapes and the strong tendency toward a rapid wake roll up for low speed case are exhibited .

在非结构网格上应用聚合多重网格技术来加速Euler方程的收敛过程。基于非结构动态嵌套网格，将聚合多重网格方法引入到旋翼的前飞流场计算中。

An agglomeration multigrid algorithm has been developed to accelerate the convergence of the Euler equations to a steady state on unstructured meshes . An agglomeration multigrid method was applied to numerical calculation of rotor forward flight flow based upon the unstructured dynamic overset grids .

研究一种蝴蝶（Morphopeleides）前飞时的气动力特性.在运动重叠网格上数值求解Navier-Stokes方程，对蝴蝶前飞时左、右翅膀的拍动运动以及跟随身体一起的俯仰运动进行计算。

The aerodynamics force generation of a butterfly ( Morpho peleides ) in forward flight was studied , using the method of numerically solving the Navier-Stokes equations in moving overset grids .

前飞旋翼三维湍流场的数值模拟

Three dimensional turbulence numerical simulation of rotor in forward flight

动力入流对直升机旋翼前飞操纵导数的影响

The effects of dynamic inflow on rotor control derivatives in forward flight

聚合多重网格法在旋翼前飞流场计算中的应用

Application of agglomeration multigrid method in calculation of rotor forward flight flow

然后，讨论昆虫悬停和前飞时的能耗问题；

Then the power requirements of hovering and forward flight are discussed .

前飞状态下直升机旋翼旋转噪声预测

Numerical prediction for the acoustic noise of helicopter rotor in forward flight

复合式直升机前飞状态旋翼-机翼干扰计算分析

Rotor-wing interaction analysis of a compound helicopter in forward flight

直升机由悬停过渡到前飞的飞行特性研究

Flight characteristics of helicopter from hover to forward flight

对旋翼前飞算例成功进行了数值计算与分析。

A case has been done successfully and analysed .

悬停和前飞状态倾转旋翼机的旋翼自由尾迹计算方法

The rotor free-wake analytical method for tiltrotor aircraft in hover and forward flight

悬停及前飞状态下旋翼／机身的气动力干扰

Aerodynamic interactions between a rotor and a fuselage in hover and forward flight

风切变场中直升机前飞状态动态响应

Helicopter dynamic response to wind shear in forward flight

前飞状态直升机旋翼的自由尾迹计算

Free Wake Calculation for Helicopter Rotor in Forward Flight

前飞状态直升机总距操纵响应特性计算

Calculation on Helicopter Control Response for Forward Flight Based on Free Wake Model

基于非结构嵌套网格的旋翼前飞流场计算

Improving Numerical Simulation of Rotor Forward Flight Flow Field with Unstructured Dynamic Overset Grids

前飞状态直升机旋翼/机身非定常气动干扰的分析

Analysis of unsteady aerodynamic interactions between rotor and fuselage of helicopters in forward flight

前飞状态倾转旋翼机气弹稳定性建模贝尔/波音609民用倾转旋翼飞机&民用飞机的新葩

Bell / Boeing 609 & First Civil Tiltrotor

前飞时沿方位角的诱导速度分布究竟如何？

How does the blade induced velocity distribute over rotor azimuth in forward flight .

蜻蜓拍翼前飞中模型翼动态柔性变形的气动效应研究

Theoretical Modeling Study on the Aerodynamic Effects of Dragonfly Flexible Wing in Forward Flapping Flight

高速前飞时旋翼气动载荷计算

Rotor airload calculation in high speed flight