但是，旋转速度不变的情况下增加球速会降低升力系数。
However, increasing the velocity at a given spin reduced the lift coefficient.
其高宽比增加，升力系数增大，阻力系数减小。
When the ratio of height to width increases, the lift coefficient aggrandizes, and the drag coefficient diminishes.
结果表明：所有工况条件下，加襟翼都能够增加升力系数。
The lift and drag coefficients were determined from the surface pressure distributions, which were measured under all tested conditions.
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.
根据升力系数的脉动量急剧上升的起始点确定抖振起始边界。
The buffet onset boundary is defined as the beginning point where the fluctuating values of aerodynamic coefficients are increased suddenly.
优化后的举升机构，有较好的举升力系数曲线和油压特性曲线。
The lifting mechanism after optimization features better characteristics curves of lift force factor and hydraulic pressure.
汽车在车轮旋转情况下，阻力系数和升力系数比车轮静止情况下的低。
The coefficient of drag and coefficient of lift in the circumstance of rotating wheels is lower.
压强分布和升力系数的计算值与现存文献的数值结果和实验数据是一致的。
Predicted pressure distribution and lift coefficient are in agreement with numerical results and experimental data available in the literature.
传统的后缘襟翼有助于延缓失速到一个更高的升力系数，但只有有限的成效。
Conventional trailing-edge wing flaps help delay the stall to a higher lift coefficient, but only with limited effectiveness.
这将有效地“拉”前沿周围的空气，从而防止失速到一个更高的入射角和升力系数。
This effectively "pulls" the air around the leading edge, thus preventing the stall up to a much higher Angle of incidence and lift coefficient.
脉动升力系数先随含气率的增大而缓慢增加，在含气率增大到0.1后增大得较快。
The oscillating lift coefficient increases with the growth of the void fraction in such a way that it increases slowly before the void fraction up to 0.1 and after that, increases faster.
在失速迎角后，尖顶襟翼对升力系数的提高有明显的效果，而对阻力系数的影响不大；
The apex flap deployment had a promising effect on the lift after stalling angle, but it had little effect on the drag.
低中负荷水平下，阀门设置较低的升力系数和早期关闭泵损失减少，提高燃油经济性。
Under low to medium load levels, the valves are set for low lift and early closure to reduce pumping losses and improve fuel economy.
结果表明：机翼快速上仰时，随上仰速率增大最大升力系数增高，即动态升力效应更明显；
The experimental results show that the maximum lift coefficient Cy max and stall incidence are increased with increased pitch up rate, when the wing is rapidly pitching up.
联结翼布局与常规布局相比具有结构重量轻、诱导阻力小、升力系数大和稳定性良好的特点。
The joined-wing configuration, as compared with the normal configuration, is characterized by low structural weight, small induced drag, big lift coefficient and good stability.
型断面阻力系数雷诺数效应与近流线型断面规律相反，升力矩及升力系数雷诺数效应不明显；
Between the two type deck sections, the trend of mean drag coefficient varying with Reynolds number is opposite to each other, which challenges the traditional opinion on the blunt section;
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.
通过优化无人机外形取得了有意义的结果，优化后升力系数增加了21%，升阻比提高了6.7%。
After aerodynamic optimization of an unmanned vehicle with the methods mentioned above, the lift coefficient has an increase of 21 % and the ratio of lift to drag has an increase of 6. 7%.
该升力系数因此，可以有效地增加一倍，相对简单的装置(襟翼和缝翼)，如果使用对充分跨度机翼。
The lift coefficient can thus be effectively doubled with relatively simple devices (flaps and slats) if used on the full span of the wing.
考虑了不同飞行攻角、不同燃料流率下气动参数，包括升力系数、阻力系数和俯仰力矩系数的变化规律。
The change rules of aerodynamic parameters including lift coefficient, drag coefficient and pitch moment coefficient have been analyzed when Angle of attack and fuel flow rate is changed.
然而板条，结合边缘皮瓣与领先使用的后缘，机翼的升力系数，可有效地增加一倍，如果用在机翼完整的跨度。
However, by combining the use of trailing-edge flaps with leading-edge slats, the wing's lift coefficient can be effectively doubled if used on the full span of the wing.
对这种类型的翼型涡发生器(也称为微型涡发生器，或vgs)添加很少的改善方面的最高升力系数(或失速速度)。
On this type of airfoil vortex generators (also called micro-vortex generators, or VGs) add very little improvement with respect to the maximum lift coefficient (or stall speed).
结果表明：雷诺数对阻力系数影响较大，现场实测值比风洞试验所得值小约15％，对升力系数及力矩系数影响较小。
The drag coefficient derived from filed measurement was 15 percent less than that of wind tunnel test. On the contrary Reynolds number has a minimal effect on lift force and moment coefficient.
哈尔滨工程大学博士学位论文应用三维数值模型模拟不同展弦比机翼的突然起动问题，将计算升力系数与线性理论比较，检验算法的可行性。
To verify three-dimensional numerical scheme, calculated lift coefficients for impulsively started problem of wings with different aspect ratio are compared with linear theory.
采用流场数值模拟计算方法，计算了横风作用时的垂向气动升力系数、气动横向力系数和侧滚力矩系数，得出各系数与车辆速度和风速之间的变化关系。
Using numerical computation of fluid flow, the coefficients of vertical force, lateral force and rolling moment caused by cross-wind were calculated, which were related to train speed and wind speed.
从外挂对载机气动特性影响的计算方法出发，分析了现役某型战机外挂ZC-1航空侦察吊舱对载机升力系数、阻力系数和气动中心的影响，得出了具体的计算结果。
This paper has analyzed and calculated the influence of external ZC-1 scout equipment on the lift coefficient, damp coefficient and aerodynamic center of the fighter plane.
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.
因此，零前缘吸力的最坏情况是：由升力引起的阻力系数K是前面确定的升力曲线斜率的倒数（弧度制）。
Thus, in the worst case of zero leading-edge suction, the drag-due-to-lift factor K is simply the inverse of the slope of the life curve (in radians), as previously determined.
因此，零前缘吸力的最坏情况是：由升力引起的阻力系数K是前面确定的升力曲线斜率的倒数（弧度制）。
Thus, in the worst case of zero leading-edge suction, the drag-due-to-lift factor K is simply the inverse of the slope of the life curve (in radians), as previously determined.
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