1) lift characteristic
升力特性
1.
The influences of flapping frequency,wind velocity,angle of attack and camber of flapping-wing on lift characteristic are investigated.
为了对微型扑翼飞行器升力机理进行探索性研究,本文利用西北工业大学微型飞行器专用风洞进行了扑动翼频率、风速、迎角、扑动翼弯度对其升力特性影响的研究。
2.
Two-dimension coupled implicit Naviers-Stokes equations and standard k-ε viscid models were introduced to simulate the lift characteristic,drag characteristic,pitching moment characteristic and lift-to-drag ratio characteristic of integrated hypersonic vehicle with Hark head configuration working under the conditions of inlet closed,inlet open but unfired and inlet open and fired.
采用二维耦合隐式N-S(Navier-Stokes)方程和标准k-ε湍流模型对具有哈克外形头部的一体化高超声速飞行器在进气道关闭、发动机通流以及发动机点火状态下的升力特性、阻力特性、俯仰力矩特性以及升阻比特性进行了数值模拟,考察了机身头部长细比对其气动性能的影响,结果发现,在第一种定义方式下的飞行器构型气动性能改良程度明显高于第二种定义方式,同时,随着机身头部长细比的增加,一体化高超声速飞行器的气动性能得到明显提高,可以满足飞行器巡航时的气动要求。
3) lift and drag characteristics
升阻特性
1.
In this paper the main objective of the present study is to determine the lift and drag characteristics of the wings of the low aspect ratios of micro air vehicles at low Reynolds numbers.
研究的主要目的是确定微型飞行器小展弦比机翼的低雷诺数升阻特性。
4) temperature rise characteristic
温升特性
1.
The classification of transformer insulating system, the technical performance of high temperature solid insulating material and high temperature liquid insulating material, the temperature rise characteristic of this kind of transformer, and the key problems in design, production and operation combined with the IEC standard are also intr.
文中结合IEC标准介绍了这类变压器绝缘系统的分类、高温固体绝缘材料与高温液体绝缘材料的技术性能、温升特性及其在设计制造和运行中关键的问题,并对其在我国的应用前景进行了展望。
5) lift-off characteristic
升举特性
1.
Just-lift-off phenomena and lift-off characteristics of mechanical face seals;
机械端面密封的密封面顶开现象和升举特性
补充资料：升力
又称“举力”。物体(如飞机)与空气相对运动时，作用于物体上的垂直于气流方向的力。机翼是飞机产生升力的主要部件，机身和水平尾翼也可产生部分升力。升力的大小取决于飞行速度、机翼面积和形状、机翼与气流的相对角度、空气密度等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条