thrust coefficient

The results show that the ground effects play a very important role in the thrust coefficient and blade lateral tilt angle.

结果表明，在地面涡出现的飞行条件下，与无地面效应的情形相比，旋翼拉力和侧倾角有显著变化。

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The main performance parameters of a fixed geometry scramjet are observed, and the effective thrust coefficient, effective specific impulse and effective specific thrust are determined.

探讨了固定几何尺寸（不可调）的超燃冲压发动机有效推力系数、有效比冲和有效单位推力等主要性能参数变化的定量范围。

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Relationship between the thrust force and structure parameters such as mover parameters, airgap and permanent magnet sizes has been derived An analytical expression of thrust coefficient per volume has been also derived from basic electromagnetic laws.

推导了直线电机推力与直线电机动子尺寸、气隙、永磁体结构参数之间的解析关系式：从基本电磁理论出发，推导了推力密度的解析表达式。

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The internal portion of nozzle afterbody is designed using the theory of expansion wave. The upper wall is designed for better thrust coefficient. The propulsion performance of nozzle afterbody is improved.

介绍了后体喷管的参数化设计方法，应用膨胀波理论设计后体内部喷管，以推力系数为目标设计上壁型面，提高了后体喷管的推进性能。

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Through comparing the simulation results with relevant experiment data, it shows that actuator disc method can well simulate the process of load overshot and gradually recovering to the balance. The characteristic time of dynamic inflow is related to thrust coefficient and spanwise location.

与实验数据的对比显示，计算结果能够较好的模拟载荷过冲并逐渐恢复平衡的过程。

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The effect of operation pressure on the specific impulse of tactical missile solid motors is analyzed from several factors, such as characteristic velocity, thrust coefficient, impulse coefficients of the chamber and nozzle.

从固体发动机的特征速度、推力系数、燃烧室冲量系数和喷管冲量系数等因素出发，分析了发动机工作压强对战术固体火箭发动机比冲的影响。

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The mathematical expressions with high accuracy of propeller thrust coefficient are given by the regression analysis.

运用多元多项式的回归分析方法给出了螺旋桨推力系数K T值的一种精度较高的数学表达式。

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The results are20% more accurate in lifting coefficient calculation and70% more accurate in thrust coefficient calculation, which are verified by the computational and experimental data.

算法仿真表明，采用该模型可使平均升力和平均推力计算精度分别提高20%和70%左右。

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In hover, and rotor control angles and power required versus advance ratio in forward flight with constant thrust coefficient at trim condition.

等拉力系数配平前飞时，旋翼各操纵角～前进比曲线和前飞需用功率～前进比曲线与德国宇航院（DLR）的试验结果比较一致。

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The characteristic velocity, area of nozzle throat and other parameters are calculated by using the static test results of solid rocket motor ( SRM) and introducing generalized pressure coefficient and thrust coefficient.

利用发动机地面试验结果，引入广义的压强系数和推力系数，计算了发动机的特征速度、喷管喉部面积等参数。

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Then, using propeller lifting line theory to calculate the geometric theory parameters and the hydrodynamic parameters, calculated pressure distribution, thrust coefficient and torque system number with the lifting surface theory, using the panel method to calculate propeller thrust coefficient and torque coefficient.

然后，用升力线理论计算了螺旋桨的几何参数和水动力参数，并用用升力面理论计算了压力分布、推力系数和扭矩系数，用面元法计算了螺旋桨的推力系数和扭矩系数。

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Based on the previous computation for a rotor flow field in forward flight near ground, the thrust coefficient, torque coefficient and blade flapping angles are calculated and analysed against the advance ratios and flight heights.

基于对旋翼近地飞行时流场的N－S方程计算，计算并讨论了近地飞行时，旋翼拉力、扭矩系数及桨叶挥舞角随前进比、离地高度的变化情况。

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Calculations of Thrust Coefficient and Thrust Deviation Angle of the Nozzle with Obligue Exit Section

斜切口喷管的推力系数、推力偏角的计算

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Calculation results show that through interaction characteristic optimization, the efficiency of the integrated propulsor can be dramatically increased compared with individual propeller under the same thrust load coefficient.

计算结果表明，与单独螺旋桨推进器相比，在同样的推力负荷下，干扰特性优化可使组合推进器敞水效率大幅度地提高。

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The scale effect on thrust deduction coefficient is small, which may be con-sidered approximately constant for models greater than 5 meters in length.

推力减额分数的尺度效应较小，当船模长度大于5米时可视力常数。

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The thrust coefficient has direct relationship with the area ratio of nozzle and is independent of the area of nozzle throat.

矢量状态下，推力系数与面积比呈正比关系，而对喉道面积的变化不敏感。

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The relationships among thrust coefficient, torque coefficient, power coefficient and blade top speed ratio of the blade s mentioned above are calculated by optimum Glauert method.

采用优化Glauert方法，对上述3种叶片的推力系数、扭矩系数、功率系数与叶尖速比之间的关系进行了计算。

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Calculating thrust coefficient and torque coefficient of propeller properties across four quadrants based on Matlab

螺旋桨的四象限推力系数和转矩系数的Matlab实现方法

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Possible sliding surfaces of the Baota landslide are calculated by means of disequilibrium thrust transmission coefficient.

通过采用不平衡推力传递系数法，对宝塔滑坡各个可能滑动的滑动面进行多种方案的计算，以及长江库区水位对宝塔滑坡稳定性的影响。

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