Airfoil相关论文
The airfoil with two degrees is simulated to get the beat phenomenon. The results indicate that the occurrence of beat p......
The transit time difference of fluid particles moving along the upper and lower surfaces of a lift-producing airfoil is ......
The present study performed a numerical investigation to explore the performance enhancement of a co-flow jet (CFJ) airf......
Computational prediction of stall aerodynamics in free air and in close proximity to the ground considering the 30P30N t......
本文通过数值计算,研究了一种前缘为可转动圆柱的二维S809翼型的气动性能.研究表明,通过驱动前缘圆柱旋转,可有效抑制翼型吸力面的......
以长耳鸮翼型为仿生原型,采用逆向工程方法提取鸮翼翼型下表面特征点并利用B样条曲线进行拟合建立鸮翼仿生重构模型。通过数值求解......
本文针对柔性叶片能量转换装置的结构特点,在对四种弯曲变形叶片翼型气动载荷实验研究的基础上,采用参数化建模技术建立四种弯曲变......
为研究仿生波状前缘对翼型失速性能的影响,本文采用S-A湍流模型,对风力机翼型NACA634-021(光滑前缘)以及对应的正弦波状前缘仿生翼......
A new skill of modulating driving signals of a synthetic jet with low frequency is intro-duced to enhance the control au......
Numerical Investigation of the Effects of Wind Tunnel Model Vibrations on the Measured Aerodynamic P
This paper presents a numerical prediction of the unsteady flow field around oscillating airfoils at high angles of atta......
Effect of Gurney flap on flow separation and aerodynamic performance of an airfoil under rain and ic
In the present study,special attention is paid to numerically investigate the aerodynamic performance of the NACA 0012 a......
Experimental and numerical investigation of the influence of roughness and turbulence on LUT airfoil
Vertical-axis wind turbines (VAWTs) have been widely used in urban environments,which contain dust and experience strong......
Aerodynamic design optimization of helicopter rotor blades including airfoil shape for hover perform
This study proposes a process to obtain an optimal helicopter rotor blade shape for aerodynamic performance in hover fli......
An approach for designing the compliant adaptive wing leading edge with composite material is proposed based on the topo......
为了提高大变形下动网格生成的效率和质量,基于径向基函数插值技术对原始Delaunay图映射动网格方法进行了改进。首先通过带多项式......
This study focuses on the characteristics of low Reynolds number flow around airfoil of high-altitude unmanned aerial ve......
Experimental investigations for parametric effects of dual synthetic jets on delaying stall of a thi
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Kriging代理模型中引入梯度信息能够提高模型的预测精度,但常规耦合梯度的方法都有不足之处.本文结合分级Kriging模型,提出了一种......
为了提高飞机巡航过程中升力系数、马赫数变化后的气动效率,大型民用运输机开始采用机翼变弯度技术.以典型远程宽体客机翼型为例,......
Leading-edge flow separation control over an airfoil using a symmetrical dielectric barrier discharg
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
A transition prediction method for flow over airfoils based on high-order dynamic mode decomposition
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
为实现风力机专用翼型尾缘加厚修型优化,并实现优化过程的自动运行,采用ISIGHT多学科设计优化软件平台,针对钝尾缘翼型的运行特点,......
为全面、定量分析大雨对飞机降落阶段的严重影响,选取波音737-300作为典型代表,首先对于降落阶段大雨造成的飞机性能损失进行了量......
研究NPU-WA风力机专用翼型族4个厚翼型(相对厚度25%、30%、35%和40%)的粗糙敏感度,并与相同厚度的经典风力机翼型进行比较。结果表......
采用大涡模拟方法对风力机翼型全流向绕流进行数值模拟研究。以典型的风力机翼型DU9-W-300和DU93-W-210为例，分别开展全流向绕流大......
以测绘的外场真实叶片为研究对象,截取有代表性的叶尖和叶根翼型,对比研究其非定常特性。结果表明:运行在小攻角(2.93°)下的叶尖......
通过对直叶片垂直轴风力机在不同翼型、尖速比和实度组合状态下改变其叶片安装角得到的模型进行流场计算，总结以上3种情形下不同安......
Aerodynamic shape optimization for alleviating dynamic stall characteristics of helicopter rotor air
In order to alleviate the dynamic stall effects in helicopter rotor, the sequential quadratic programming(SQP) method is......
针对后缘小翼(TEF)的典型运动参数对旋翼翼型动态失速特性的控制进行了研究.发展了一套适用于带有后缘小翼控制的旋翼翼型非定常流......
果蝇优化算法(FOA)是一种新的群体智能优化算法,具有良好的全局收敛特性。为进一步提高FOA的寻优性能,将其引入到气动优化设计中,......
飞行器表面在一定气象条件下会产生积冰,积冰会使飞行器气动性能下降,是危害飞行安全的重要因素之一.常见的气热及电热防冰系统已......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
An Airfoil Parameterization Method for the Representation and Optimization of Wind Turbine Special A
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Tests and numerical simulation of aerodynamic characteristics of airfoils for general aviation appli
This paper was to validate the effects of airfoil thickness ratio on the characteristics of a family of airfoils.Re-sear......
对S809和S8052种厚度不同的翼型进行尾缘修剪，采用翼型设计分析软件Xfoil对修剪前后翼型的气动性能进行计算，研究了不同程度尾缘修剪......
由于在非定常气动环境下运行的风力机会受到非定常气动载荷的作用,采用2种降阶模型(ARMA模型和Volterra级数模型)对风力机翼型的非......
以某1．5 MW 风机叶片 S818翼型为研究对象，建立了翼型流场有限元分析模型。采用基于 Reynolds 平均的 Navier-Stokes 不可压缩粘性方......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Numerical Investigation of the Effects of Wind Tunnel Model Vibrations on the Measured Aerodynamic P
This paper presents a numerical prediction of the unsteady flow field around oscillating airfoils at high angles of atta......
用有限体积法求解了雷诺平均Navier-Stokes方程.空间离散采用了Osher逆风格式,紊流模型采用了两方程模型,并对绕NACA0012翼型及双......
This paper presents an efficient numerical method for solving the Euler equations on rectilinear grids. Wall boundary co......
The classical condensation model of water vapor is coupled with the Euler equations to calculate transonic flows of mois......
A simplified theoretical method based on the quasi-steady wing theory was proposed to study the unsteady aerodynamic for......
