aspect ratio

Influence of aspect ratio on flow field performance of linear bowed stator in compressor at low speed;

低速条件下展弦比对弯叶片扩压静叶栅流场性能的影响

Calculation of pressure distributions of low aspect ratio missile wings at supersonic speeds and high angles of attack;

超声速大迎角条件下小展弦比弹翼压力分布计算研究

The aerodynamic characteristics of the cuted tip rhombus wing and double-delta wing of middling sweepback angle and aspect ratio about sixty type are investigated by a numerical method based on Eular equations.

采用Euler数值计算方法,对60多种中等后掠角及展弦比的切尖菱形机翼、双三角机翼纵向气动力特性进行了计算、分析和比较,从中筛选出16种切尖菱形机翼、14种双三角机翼进行了全机高速风洞实验研究,给出了机翼的展弦比、前缘后掠角、根梢比(后缘前掠角)及几何扭转变化对全机升力、阻力及俯仰力矩的影响曲线和数据分析,在此基础上提出了用于定量估算两类机翼纵向气动力特性的关系式及修正因子。

The finite element analysis in buckling and postbuckling is required adopted because of the high aspect ratio wing structures stability problem.

大展弦比复合材料机翼结构的稳定性问题突出,需对结构进行屈曲和后屈曲分析。

Based on the structural characteristics of high aspect ratio wing, the sandwich, multi-spar structure and an innovative mixed structure are designed and compared.

针对大展弦比机翼结构的特点,选定蜂窝夹层、多墙式和一种新型混合式结构进行分析比较。

In order to study the optimal layout about fuselage and wing based on wing bending stiffness on bi-fuselage aircraft with high aspect ratio straight wing, the authors utilized the engineering beam to model this physical problem and gave the numerical solution through the optimization tool box of MATLAB 6.

为了探讨双机身大展弦比直机翼无人机中基于翼面弯曲刚度下机身与机翼的最佳布置问题, 本文采用工程梁对这一问题进行建模, 并利用MATLAB6。

The longitudinal and lateral-directional stability of the low aspect-ratio flying wing in several typical conditions was researched, including static stability and dynamic stability.

针对小展弦比飞翼布局飞机,分别研究其在几种典型飞行状态下的纵向和横航向的静、动稳定特性,通过与常规布局飞机进行对比,着重揭示了飞翼构型参数、飞行状态与其稳定性间的量化规律,并详细分析了这一布局纵向短周期模态及横航向荷兰滚模态发散的具体成因。

A certain flying wing configuration combat aircraft with low aspect-ratio is chosen as an example.

以某小展弦比飞翼布局作战飞机为例,利用风洞试验结果研究了几种典型新型操纵面的操纵新机理及不同飞行条件下的操纵效能等。

The directional axis flying qualities of low aspect-ratio combat flying wings were assessed in accor-dance with MIL—STD—1797A,and the evaluation results indicate the following aspects.

依据MIL—STD—1797A飞行品质规范,对小展弦比飞翼布局作战飞机的偏航轴飞行品质进行了评定研究。

Based on wing structural design,composite plies design,computation of the wing aerodynamic andthe wing structural finite element analysis by loading aerodynamic pressure on the wing structure using the aerodynamic-structure load transfer between CFX and ANSYS,a high-aspect-ratio composite wing assembled on the UAV for high-altitude and long cruise time is designed.

研究沿着机翼气动性能计算、复合材料机翼构形设计、复合材料部件铺层设计、CFD/CSM载荷传递、机翼结构力学性能计算的设计分析流程,完成了一个大展弦比全复合材料机翼的设计过程。

The concept of asymptotic matching perturbation and computation algebra are employed to investigate aerodynamics of small aspect ratio wings with extreme ground effect.

应用渐近匹配摄动法和计算机代数解法，研究了小展弦比机翼极端地面效应的气动力问题，得到了小展弦比机翼极端地面效应问题的半解析解，并与相应的面元法的结果进行了比较，以检验其有效性。

Subsonic,transonic and supersonic aerodynamic characteristics of a flying wing fighter with small aspect ratio were compared with conventional fighter F16.

比较分析了某小展弦比飞翼布局作战飞机与典型的常规布局战斗机F16在亚、跨、超声速范围的气动特性,相对而言,飞翼布局飞机具有较大的升阻比和较低的翼载荷。

Three groups of turbine rectangular cascades with a low aspect ratio and gasflow different turning angles were tested in a low speed wind -tunnel.

低展弦比透平叶片弯曲方法研究王仲奇，韩万今，徐文远（哈尔滨工业大学哈尔滨１５０００１）关键词：低展弦比，透平叶片，弯曲方法。

The aerodynamic characteristics and secondary flow vortices development of a steam turbine low aspect ratio endwall contouring nozzle cascade are investigated by CFD commercial software Numeca;the effects of tip endwall contouring are evaluated in comparison with the plain endwall nozzle under same boundary conditions.

采用数值计算软件Numeca模拟了汽轮机低展弦比端壁收缩喷嘴中气动性能和二次流涡系的发展,并与相同边界条件下的平直端壁喷嘴比较,得到了端壁收缩对流场性能的影响。

slim-delta aircraft

小展弦比三角翼飞机

Analysis of the nonlinear aeroelastic response for large-aspect-ratio wing

大展弦比机翼的非线性气弹响应分析

Study of aeroelastic tailoring of high-aspect-ratio flexible composite wing

大展弦比柔性复合材料机翼的气动弹性剪裁

Nonlinear Aeroelastic Response and Flutter Analysis of High-Aspect-Ratio Wings;

大展弦比机翼的非线性气弹响应与颤振分析

The Modeling of Variable Wind Field and Flight Simulation of High Span-Chord Ratio Unmanned Air Vehicle;

变化风场的建模与大展弦比无人机飞行仿真

Static Aeroelastic Investigation of Large Aspect Ratio UAV

大展弦比无人机的静气弹问题计算及分析

Qualities Assesses Criterion of Short Period Mode for Flying Wings with Low Aspect-Ratio

小展弦比飞翼构型飞机短周期品质评定方法

Experiments on Viscous Flows around Low-Aspect-Ratio Wing at Low Reynolds Numbers

低雷诺数下小展弦比机翼绕流的实验研究

Aerodynamic optimization for low aspect ratio wing at low Reynolds number

低雷诺数下小展弦比机翼的气动力优化设计

Requirement characteristics of low-aspect-ratio combat flying wings' roll axis control power

小展弦比飞翼战机滚转轴操纵效能需求特性

Lateral-directional flying quality characteristics of high aspect-ratio combat flying wings

大展弦比飞翼作战飞机横航向飞行品质特性

Influence of chordwise bending stiffness on aeroelastic characteristics of flexible high-aspect-ratio wing

水平弯曲刚度对大展弦比机翼颤振的影响

Lateral Inject Active Vortex Control Based on Low Aspect Ratio Flying Wing

小展弦比飞翼布局飞机横向涡流控制气动机理

A small aspect ratio Circulation Control Wing (CCW, λ=1) has been studied experimentally in wind tunnel.

本文对一小展弦比(λ=1)可控环量翼进行了风洞试验.

Structural Modeling and Aeroelastic Analysis of High-Aspect-Ratio Composite Wings

大展弦比复合材料机翼结构建模与气动弹性分析(英文)

Analysis of the Influence of the Aspect Ratio of a Transonic Compressor on the Aerodynamic Performance of Bowed and Swept Blades

跨音速压气机中展弦比对弯掠叶片气动性能影响的分析

The test technique for aircraft with high aspect ratio in the 2.4 meter transonic wind tunnel

2.4米跨声速风洞大展弦比飞机测力试验技术研究

Numerical Study on the Effects of Aspect Ratio for a Transonic Fan

展弦比对某跨音速风扇性能影响的数值研究(英文)