极低展弦比,extremely low aspect ratio
1)extremely low aspect ratio极低展弦比
1.The three-dimensional steady viscous flow field of an stator cascade withextremely low aspect ratio in ultra-micro gas turbine was obtained by numerically solving the 3D Navier-Stokes equations with time averaged Reynolds stress model under cylindrical system,combined with RNG k-ε turbulent model and non equilibrium wall function.通过数值求解柱坐标系下三维定常粘性雷诺时均N-S方程,结合RNGk-ε湍流模型和非平衡壁面函数,获得了超微涡轮中极低展弦比静叶栅流道内部的三维稳态粘性流场,揭示了其独特的流场物理特性和气动损失规律。
英文短句/例句
1.Flow Field Characteristics of Stator Cascade with Extremely Low Aspect Ratio in an Ultra-micro Gas Turbine超微型涡轮中极低展弦比静叶栅流场特性的数值研究
2.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
3.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
4.slim-delta aircraft小展弦比三角翼飞机
5.The Application and Development of Very Low Bitrate Video Coding Technology极低比特率视频编码技术的应用及发展
6.New Improvements on the Reform of Bass Musical Instruments in National Orchestra;民族管弦乐队低音乐器改革的新进展
7.Double bass strings are much more expensive than guitar, electric bass, or violin strings.低音提琴的琴弦要远比吉他、电贝司或是小提琴的琴弦贵得多。
8.A four-stringed instrument of the violin family, pitched lower than the viola but higher than the double bass.大提琴一种提琴类四弦乐器，音调比中提琴低但比低音提琴高
9.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
10.High accuracy complex sinusoid frequency estimator in low SNR environment低信噪比下的高精度复正弦频率估计算法
11.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
12.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
13.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
14.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
15.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
16.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
17.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
18.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
相关短句/例句
low aspect ratio低展弦比
1.Three groups of turbine rectangular cascades with alow 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。
2.The aerodynamic characteristics and secondary flow vortices development of a steam turbinelow 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。
3)high aspect ratio大展弦比
1.The finite element analysis in buckling and postbuckling is required adopted because of thehigh 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。
2.Based on the structural characteristics ofhigh 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。
3.In order to study the optimal layout about fuselage and wing based on wing bending stiffness on bi-fuselage aircraft withhigh 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。
4)low aspect-ratio小展弦比
1.The longitudinal and lateral-directional stability of thelow 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。
2.A certain flying wing configuration combat aircraft withlow 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。
3.The directional axis flying qualities oflow 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。
5)high-aspect-ratio大展弦比
1.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,ahigh-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。
6)aspect ratio展弦比
1.Influence ofaspect 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
2.Calculation of pressure distributions of lowaspect 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
3.The aerodynamic characteristics of the cuted tip rhombus wing and double-delta wing of middling sweepback angle andaspect 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。
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齐展展1.整整齐齐。
