将高速滑体制成相似的机翼模型,进行风洞试验,即可测定滑坡凌空飞行的空气动力学参数,从而计算大型高速滑坡凌空飞行的空气动力升力、飞行速度和飞行距离等。
If we make a wing model which is similar to sliding mass, we can determine aerodynamic parameters by the wind tunnel testing and thus calculate the lift.
通过调整襟翼,可使翼帆低端的升力达到最高,从而产生大量动力,并减少上端升力,产生较少的侧向力。
The flaps can be adjusted to maximize lift on the wing's lower end, generating a lot of power, and to reduce it up top, generating less heeling, or tipping, force.
在空气动力学上,升力是重量,推力和阻力(空气阻力)的相关的函数。
In aerodynamic terms, lift is a function of weight, thrust and drag (air resistance).
由于地处高海拔地区,气压较低,因而作用在球上的阻力及升力所产生的空气动力效应也会发生相应反应,最终导致球在空中飞行速度比在低海拔地区快,飞行的路线也更直。
At altitude, the air pressure is lower, and so are aerodynamic effects such as drag and lift, ultimately causing balls to travel faster and straighter than they would at lower altitude.
浮空器从周围空气的浮力而不是从空气动力获得提升力的航空器,特指气球或飞船。
An aircraft, especially a balloon or dirigible, deriving its lift from the buoyancy of surrounding air rather than from aerodynamic motion.
在空气稀薄的平流层中,如何产生升力是一个问题。这种飞艇通过氢气浮力和空气动力制造升力的设计看上去能够解决这个难题。
Lift is a problem in the rarefied air of the stratosphere, and it seems such a design can help.
应用升力面理论涡格法和面元法,建立了拖式吊舱推进器非定常水动力性能的数值计算方法。
Based on potential flow theory, a numerical method is proposed for predicting the steady and unsteady hydrodynamic performances of puller type podded propulsors.
对新款车的前后区域均进行了空气动力学微调,这样做旨在确保最大限度地平衡前后轴的升力系数。
The aerodynamic fine tuning in the front and rear areas is designed to guarantee an optimum balance in the lift coefficients at the front and rear axles.
升力翼水动力对规则波呈周期性响应,其中以法向力的响应最为显著。
The hydrodynamic forces of the lifting airfoil give a periodic response to regular waves and the response of the normal force is most notable.
为了优化无人驾驶航空飞行器在整个飞行过程中的空气动力特性而使机身、推进系统和升力控制面一体化的设计技术。
Design technology for integration of air vehicle fuselage, propulsion system and lifting control surfaces to optimize aerodynamic performance throughout the flight regime of an unmanned air vehicle.
本文提出了一种鱼形舵定常升力的水动力性能预报的理论预报方法。
The theoretical calculation method about how to predict the hydrodynamic characteristics of Ichthyoid Rudder is proposed in this paper.
计算结果表明,运动的非定常性对升力面的流体动力特性具有显著的影响,工程应用中对此需要加以考虑。
Calculation results show that the unsteady motion has pronounced influences on the hydrodynamic characteristics of the lifting surface, a phenomenon deserving due consideration in applied engineering.
运用空气动力学原理,对标枪的纵轴旋转与压强阻力、偏向力、上升力及稳定性的关系进行分析研究,以更好地指导运动训练的实践。
The paper elaborates on the relations between the revolve of Javelin and pressure resistance, deflection force, ascensus force as well as stability.
在颤振特性分析中所需要的广义气动力是根据亚音速非定常升力面理论,采用马蹄涡—振荡压力偶极子格网法计算的。
The generalized aerodynamic force required in analysis is calculated by using horse shoe vortex— vibrational pressure doublet grid method, based on theory of subsonic unsteady lifting plane.
对接近海面运动的升力翼的水动力特性进行了模拟试验。
Simulation experiments have been made on the hydrodynamic characteristic of the lifting airfoil moving near the sea surface.
水动力学表明,襟翼舵的存在大幅度地提高了升力系数值。
Hydrodynamics shows that the flap rudder can increase lift coefficient notably.
本文采用升力面理论预报螺旋桨非定常水动力性能及空泡性能。
This paper has adopted the lifting-surface method for the prediction of unsteady hydrodynamic performance and cavitation performance of propeller.
给出了水动力系数相对于间距、攻角的回归公式,并划分了三个典型的干扰区域:升力区、混合区、阻塞区。
The regressive formulae of hydrodynamic coefficients relative to clearances, attack angles were given. Three typical interaction regions were divided, defined as Lifting, Mixed and Blocking region.
能估算可压缩无粘流中,基本空气动力外形的升力和阻力。
Calculate the lift and drag over simple aerodynamic shapes in compressible, inviscid flows.
像大多数小飞机一样,黄蜂无人机通过固定的翅膀获得上升力,并通过螺旋桨获得推动力,螺旋桨的动力来自一个10w的电动马达。
Like most small planes, the Wasp gets lift from fixed wings and thrust from a propeller, which is powered by a 10w electric motor.
介绍了用于拍动翼的非定常空气动力特性和高升力机理。
The unsteady aerodynamics and the unsteady high-lift mechanisms applied in flapping wings are introduced.
启合式扑翼发明属航空飞行器空气动力学领域。可解决旋转翼和固定翼航空飞行器的正交方向阻力超升力增加的问题。
The present invention relates to flyer and aerodynamics and can solve the problem that the resistance in orthogonal direction increases faster than lift in rotary wing and fixed wing flyer.
昆虫通过高频扇翅可以产生很大的升力,相关的非定常空气动力学机理及理论逐渐被人们所认识。
Until recently, it has become clear that unsteady mechanism, including high frequency flapping, is necessary for insects to produce enough lift and to keep themselves aloft.
振动力量耐力训练的最大特点是在提升力量耐力的同时促进了最大动态力量的提高。
There is no difference between vibration and pneumatic loading training in strength endurance, however, vibration training increase strength endurance.
使船舶在产生动力的同时产生升力,船舶行驶时,船体完全脱离水面。
When the boat is navigating, the hull loses contact completely with water surface and only four wing wheels are rotating on water surface.
使船舶在产生动力的同时产生升力,船舶行驶时,船体完全脱离水面。
When the boat is navigating, the hull loses contact completely with water surface and only four wing wheels are rotating on water surface.
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