Spectrum analysis reveals the frequency characteristics of vortex breakdown point oscillation and spiral wave .

频谱分析确定了 破裂点脉动和螺旋波的频率特征。

UNSTEADY CHARACTER OF VORTEX BREAKDOWN FLOW FIELD S The velocity field resulting from vortex flow and its numerical simulations

旋涡 破裂引起的流动非定常特性涡 度 诱导出的速度场及其数值模拟

It is shown that the unsteady fluctuation characteristics of the flow become highly obvious after the vortex breakdown which exert a significant impact on the aeroelastic characteristics of the wing .

研究显示， 前缘 分离 涡 破裂后，流动的非定常脉动特性非常明显，这种非定常效应对机翼气动弹性特性的影响不可忽略。

Experimental investigations on the unsteady characteristics of vortex breakdown over delta wing

三角翼 涡 破裂非定常特性实验研究

In this paper the influence on the position of vortex breakdown by spiral forcing harmonic oscillation are analyzed and calculated by using nonlinear wave theory and an experiment on the effect of exerting different frequencies oscillation on vortex breakdown position is conducted in the vortex generator .

本文用非线性波理论分析并计算了螺旋形振荡对 涡 破碎位置的影响，并在旋涡发生器中进行了施加不同频率的振荡对涡破碎位置影响的实验。

The method is only suitable for the nonlinear problem caused by detached vortex of wing before vortex breakdown .

该方法适用于翼面产生脱体涡流型或脱体涡占优（ 涡 破裂前）所引起的非线性问题。

The unstable vortex and vortex breakdown are the main features of unsteady flow near the core of leading edge vortex around a delta wing at high incidence .

三角翼大攻角非定常绕流前缘涡涡轴附近的流动以不稳定涡和 涡 破裂为主要特征；

Effect of Support on Vortex Breakdown of Delta Wing in Dynamic Tests

动态试验中支架对三角翼 涡 破碎影响研究

On the basis of functional analysis and the linear aerodynamic theories the aerodynamic models including in dynamic stall vortex breakdown hysteresis effect are built up by rational simplified assumption .

在泛函分析和非定常气动力线性理论的基础上，通过合理的简化建立了能够包括气动力动态失速和 涡流 破裂及显著气动迟滞效应的非线性气动力模型表达式。

This paper also presents analysis of the flow features ahead and behind of the leading edge vortex breakdown and the topological features of section streamlines .

本文还分析了前缘 分离 涡 破裂前后的流动现象和旋涡 横截面流线图谱的变化规律。

The vortex breakdown results in the low-energy fluid accumulating on the casing wall spreads out remarkably which has a large blockage effect on incoming flow .

定 常 数值 模拟结果表明，近失速工况下泄漏 涡在 叶片 通道 内部 发生 破碎， 涡 破碎使得堆积在机匣壁上的低能流体迅速扩散，对来流产生了很大的阻塞效应。

By correlation analysis of statistical breakdown location data it indicates that there is a negative correlation between signals of left and right vortex breakdown location after low pass filter .

对统计的破裂点位置数据做低通滤波后进行相关性分析，还表明了 三角 翼左右2个 前缘 涡 的 破裂点位置信号具有负相关性。

Analysis of Oscillating Characteristics of Spiral Vortex Breakdown

螺旋型 涡 破碎振动特性分析

Arising from the debate upon the breaking time of the stratospheric polar vortex in boreal spring an observational study of the relation between stratospheric polar vortex breakdown and the boreal extra-tropical circulation was performed in this paper .

针对以前研究中北半球平流层极 涡崩溃时间的分歧，本研究首先确定了北半球平流层极涡在春季的 崩溃时间，并分析了在平流层极 涡 崩溃过程中的环流演变和波动活动特征。

The study of transonic dynamic stall and vortex breakdown over a delta wing

三角翼跨声速动态失速与 涡 破裂 特性研究

The influence on the position of vortex breakdown by spiral forcing harmonic oscillation on form

螺旋形强制谐波振荡对 涡 破碎位置的影响

The Effects of Unsteady Perturbation on Vortex Breakdown

非定常扰动对 涡 破裂的影响

The phenomenon of the leading edge vortex breakdown and its effects on the aerodynamic characteristics of the wings ;

前缘 涡 的 破裂现象及其对机翼气动力特性的影响；

The procedure of the vortex breakdown transition at high angle of attack over a delta wing is investigated numerically by solving the unsteady full Navier Stokes equation .

时某外形三角翼 背风 区 旋涡 破裂的发展、演变过程，并对旋涡区域的截面流态和涡轴上奇点附近的空间流动特征进行了分析。

The transonic separated flows around a pitching delta wing and vortex breakdown and aerodynamics characteristics are studied numerically .

通过数值方法研究了高速气流中细长三角翼作匀速上仰机动飞行时的背风面分离流与 涡 破裂特性和气动力特性。

An investigation of the effect of the nonuniform field feature around a delta-wing on the separated vortex breakdown

三角翼非均匀流场特性对其分离 涡 破裂影响的研究

In the process of generation and evolution of vortex breakdown the variation rule of the primary vortex sectional topological structures along the core maintain unchanged because the vortex breakdown does not change the rules of vortex stretching and compression .

在 涡 破裂的产生与演化过程中，前缘涡的横截面拓扑结构沿流向的变化规律基本不变，原因在于涡破裂的产生和演化并没有改变旋涡沿轴向的拉伸和压缩规律。

Experiments of flow visualization and dynamic pressure measurement were carried out in a water channel and a wind tunnel respectively to research oscillations of the vortex breakdown location over delta wings .

在水槽中和风洞中分别进行了流动显示和动态测压实验，目的是研究三角翼 前缘 涡 破裂点的脉动现象。

The solitary wave theory of the weakly nonlinear non-axisymmetric disturbances is used to model the spiral vortex breakdown .

本文使用弱非线性、非轴对称扰功波的孤立波模型模拟螺旋型 涡 破裂。

Experimental Investigation for the Effects of Vectored Trailing-Edge Jets on the Leading-Edge Vortex Breakdown of a Double Delta Wing

偏转矢量喷流对双三角翼前缘 涡 破裂影响的实验研究

Theoretical investigation of separated vortex motion and vortex breakdown feature

分离 涡运动和 破裂特性的理论研究

The effects of trailing edge jets on the vortex breakdown location over a delta wing

三角翼后缘喷流对 前缘 涡 破裂位置的影响