The aerodynamic drag and lift of javelin increase with angle of attack.
标枪的气动阻力、升力随迎角增加而增加。
According to the data given by the Weibull radar, the drag coefficient and angle of attack were identified.
提出了利用韦布尔雷达测量的速度及弹道参数来辨识非常规弹丸飞行的阻力系数和攻角的方法。
The extended linearization of nonlinear systems is used to design flight control systems at high angle of attack.
利用非线性系统的扩展线性化方法设计具有大迎角的非线性飞行控制系统。
Moreover, the rudder deflection angle matches reasonably with the balance angle of attack, so the ERGM has super glide ability.
舵偏角与平衡攻角匹配合理，有较高的滑翔增程能力；
The aerodynamic drag of different models at zero angle of attack in the experiment is calculated using the simplified procedure.
在零攻角实验时不同模型的空气动力阻力是采用简化方法来计算的；
The influence of nodal points interval of angle of attack and order of spline function on estimation results is also researched.
同时还研究了迎角节点间隔和样条函数的次数对估计结果的影响。
The fore-body with sharp section angle can produce direction stability at middle-higher angle of attack in the case of side-slip.
有侧滑时，尖侧缘的非圆截面机身头部在中等和大迎角下，可具有方向稳定性。
This paper introduces two methods to get the virtual sensor signal of angle of attack and sideslip angle: Nonlinear Observer method and INS/GPS method.
本文介绍了两种方法来得到迎角和侧滑角的虚拟传感器信号：非线性观测器方法和利用INS／GPS系统数据估计迎角和侧滑角方法。
The result shows that the measured strength of the vortex is not equal to the strength of the impulsive motion of the plate with a small angle of attack.
实验结果表明，由此测得的旋涡强度不同于用小攻角平板起动涡公式计算的起动涡强度。
The method does not require to calculate the details of the stream lines and can be used for various swept wings at moderate angle of attack or yaw angle.
这种方法不需要计算出无粘流线的细节，并适用于不同外形的后掠翼。
When a fighter aircraft or missile flies at high angle of attack(AOA), asymmetric vortexes are produced from the forebody and induce strong side force and yawing moment.
飞机或导弹在大迎角下飞行时会形成非对称涡，从而产生很大的侧滑力和偏航力矩。
Numerical solutions agree with supersonic linearized potential flow theory as a special case when the mean angle of attack tends to zero and with piston theory in hypersonic case.
作为平均迎角趋于零的特殊情况，本文的数值结果与超声速线化的位流理论是一致的，在高超声速情况与活塞理论一致。
This kinetic model can be used in ballistic calculation of projectile with large angle of attack and also in the design of some smart munitions(e. g. target sensitivity projectile).
此动力学模型可用于弹丸大攻角飞行时的弹道计算及某些灵巧弹药（如末敏弹）的设计。
The transonic turbulent flow around a blunt nosed and short body at large angle of attack was calculated and analysed by using numerical simulation method to solve the full N S equations.
采用数值模拟求解NS方程方法计算与分析了绕大钝头短体外形的跨音速大迎角时的湍流流动。
The dynamic derivatives conception is used as the index for the vehicle stability, but it is looked as the function of angle of attack and Mach number to induced nonlinear characteristics.
采用自由振荡法数值模拟了平头、钝头外形的超声速俯仰振荡时间历程，并应用奇异分解线性最小二乘法辨识稳定性导数，得到动导数随马赫数和攻角非线性变化的规律。
The results show that the performance of optimized fan is improved by lowering the energy loss which caused by the secondary flow vortex, the volute tongue, the wake-jet and the angle of attack.
研究结果表明：通过优化有效降低了因二次流漩涡、风机蜗舌结构、尾流-射流和正冲角等造成的能量损失，提高了离心通风机性能。
There are two shedding modes along the slender axes when the angle of attack is very high. The Karman vortex shedding region is located in afterbody while the nose vortices region is near the apex.
在迎角很大时细长旋成体背部流场沿轴向通常有两个截然不同的区域，其中卡门涡脱落区域位于后体，而头涡区域靠近旋成体头部。
Numerical procedure is developed for hydrofoils in steady motion at small angle of attack beneath the free surface. Computational results are compared with that of experiments and other computations.
以在自由表面下作小攻角定常运动的水翼为例进行了计算，计算结果与试验结果和其他计算结果作了比较。
Rotor wake effects are modeled in the form of a correction applied to the angle of attack along the blades. This correction is obtained by computing the local induced downwash with free wake analysis.
旋翼尾流的作用通过自由尾流分析来求解局部的诱导下洗速度以修正翼型攻角。
Angle of attack measuring has very important meaning.
测量攻角具有十分重要的意义。
Effects of the aspect ratio and Angle of attack are analysed.
分析了展弦比和攻角的影响。
The measurement of the model Angle of attack is a key part in wind tunnel test.
模型迎角的测量是风洞试验中非常重要的环节。
The conventional tail must be at a negative Angle of attack, and the canard tail at a positive Angle.
通常的尾翼必须处于负迎角，而鸭式尾翼则为正迎角。
The Angle of attack, pitch Angle and velocity at shifted point for typical trajectory were calculated.
给出了两种控制方法的导引律，计算了典型弹道的攻角、俯仰角和交班点速度等参数。
A zero-install roll Angle of the wrap around fins projectile still has roll moment at zero Angle of attack.
卷弧翼与弹身扣合较好，在零攻角下会产生滚转力矩。
The conversion range of Angle of attack was set up and considered as the only input variation of fuzzy system.
设定攻角变化范围，并将其作为模糊系统的唯一输入变量。
The influence on flow structure and aerodynamic of a slender by sweep wing at high Angle of attack was studied.
研究了在大迎角下，后掠翼对细长体绕流结构和气动力特性的影响。
The influence on flow structure and aerodynamic of a slender by sweep wing at high Angle of attack was studied.
研究了在大迎角下，后掠翼对细长体绕流结构和气动力特性的影响。
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