The coefficient of drag and coefficient of lift in the circumstance of rotating wheels is lower.
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。
It appears, however, that the "drag coefficient", CD, also depends on the velocity of the ball.
然而，阻力系数CD，也取决于球的速度。
Assuming that the amount of spin had not decayed too much, then the drag coefficient increased.
假设转速衰减很少，那么阻力系数增加。
Ben designed the fairing shell to have a drag coefficient that would allow me to achieve at least 50 KPH on less than 130 watts of power.
本设计的整流罩外壳有阻力系数，使我实现至少50公里不到13 0瓦的功率。
In ocean engineering realm, fluid drags are computed by Morison equation with drag coefficient defined by a function of Renold number and attack Angle.
在海洋工程领域，计算软管流体阻力采用莫里逊公式，其中阻力系数是双参数迎角和雷诺数的函数。
This paper gives an account of and analyses the experimental results of heat transfer and drag coefficient of the spiral tube of different construction.
本文叙述了对不同结构螺纹管阻力系数和传热性能的试验结果，并对试验结果进行了分析。
The drag coefficient of the aft wetted area of vehicle also decreased with the ventilated cavitation number.
随通气空化数的减小，超空泡航行体尾部沾湿区域阻力系数也逐渐减小。
Such parameters of flow characteristics are investigated as lift and drag coefficient and vortex shedding frequencies.
计算了圆柱的升阻力系数、尾涡脱落频率等描述绕流问题的主要参量。
The research indicates that, the method of Computational Fluid Dynamics can calculate the drag coefficient of the irregular parts in air and flue gas ducts appropriately.
为计算电厂烟风道设计中常见异形件的阻力，采用计算流体动力学方法研究了典型异形件的阻力系数。
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.
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。
An algorithm for the isoprobability function of killing is also given, and ways of approaching the drag coefficient of fragments are discussed.
还给出了等杀伤概率曲线函数的算法，并讨论了破片阻力系数的取值问题。
Basing on the conception of local drag coefficient in the pipeline field, the pressure drop coefficient of fluid in each inclined flue under different condition of pressed brick was calculated.
借鉴管路计算中局部阻力系数的概念，进一步计算了斜道区不同压砖情况下的压力损失系数。
When the ratio of height to width increases, the lift coefficient aggrandizes, and the drag coefficient diminishes.
其高宽比增加，升力系数增大，阻力系数减小。
By extending length of the test floor properly, the aerodynamic drag coefficient can be measured more precisely.
适当延长地板，可提高气动阻力系数的测量精度。
Drag of the train head is obtained by the method of surface integral and drag coefficient can be computed at the same time.
通过表面积分的方法得到各种列车车头的阻力，进而计算得到了车头模型的阻力系数。
A series of train heads is obtained by changing the rate of length and width of a certain train head, in order to know if the rate will affect the drag coefficient.
对于同一种车型改变了它的细长度得到一系列车头模型，分析计算了细长度对车头阻力系数的影响。
Test results show that the drag coefficient and the law of hydrostatic pressure are independent of the entrance tube type.
证明了引入管布置型式对减温器阻力系数和静压分布规律并无影响。
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.
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 and the Reynolds number are tightly related with the settling velocity of suspensions.
阻力系数和雷诺·尔德数与悬浮颗粒的下沉速度紧密联系在一起。
It is shown that the technique can obviously reduce the aerodynamic drag coefficient of the model.
结果表明：内部声激励能够明显地降低车身模型的空气阻力系数。
Based on the achievements obtained. the theoretic formula that determine the rut size of the caterpillar tractor and the friction drag coefficient of motion was deduced.
笔者将在此基础上．推导出履带式拖拉机的车辙大小的理论公式及其沿疏松土地行走时的运动阻力系数。
The analysis of aerodynamic force data shows that differ front shape is very important to aerodynamic force. For example, coach model air drag coefficient can be lowed to 0.5759 from 0.7509.
试验数据分析结果表明，不同客车前部造型对气动力影响非常显著，如通过改善造型可使空气阻力系数由0.7509降为0.5759。
Automotive frontal area is projected area of automobile driving direction, which is necessary parameter of measuring automotive air drag coefficient.
汽车迎风面积是指汽车在行驶方向的投影面积，汽车迎风面积是求汽车空气阻力系数的必需参数。
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;
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；
The magnitude of pressure has nothing to do with the direction of the rotation and the drag coefficient is larger than that of a non-rotation golf ball.
并发现带有旋转效应的凹坑高尔夫球受到的阻力系数增大；
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%.
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%。
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 test equipments of this method are simple. The prospect of applying this method in the study of drag coefficient of pile cylinder is bright.
这种方法测试装置简单，在桩柱拖曳力系数的研究中具有广泛的应用前景。
With the increase of flow velocity and drag coefficient, the damping force increases.
测试得到随水流速度增加，阻力系数增大，系缆所受阻尼力也增大。
The drag coefficient varies with the shape of the object.
拖曳系数随物体的形状而异。
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