By doing integral computation on the wake surface that is down from the aircraft and vertical to the velocity of far field, it can get the lift, induced drag, wave drag and the total drag.
在飞行器所在流场的下游一垂直于来流速度的截面上进行积分计算,得到升力、诱导阻力、激波阻力和总阻力。
His glides ended not with the usual feet-down splash into the sea, but with a long flat wake as he touched the surface with his feet tightly streamlined against his body.
他滑翔下来并不像一般鸟儿那样伸下双足溅落海中,而是蜷起双足紧贴着身体掠过海面,在水面留下长长一道波纹。
To wake up well, in preparation for the roll surface, the panel will need to sprinkle some flour, and then wake up again on the surface of flour and knead about 10 minutes.
当面醒好了后,在准备擀面的时候,需要先将面板上撒上一些面粉,然后将醒好的面放于面粉上再次揉10分钟左右。
His glides ended not with the usual feet-down splash into the sea, but with a long flat wake as he touched the surface with his feet tightly streamlined against his body.
他滑翔下来并不像一般鸟儿那样伸下双足溅落海中,而是蜷起双足紧贴着身体掠过海面,在水面留下长长一道波纹。
In addition, the wake interaction of upstream blade row and the expansion wave at rotor exit also cause an unsteady force acting on the downstream rotor blade surface.
此外上游静子尾迹以及动叶尾缘出口膨胀波等也是产生转子叶片表面非定常力的因素。
Predicted drag values for a given airfoil(RAE2822 airfoil)were compared and discussed using the surface integration and wake integration methods under both subsonic and supercritical flow conditions.
在亚跨声速时分别采用了表面积分和尾迹积分求得给定翼型RAE2822的阻力。
The water there was so calm and clear that we could spot the blood-orange frills of a lion's mane jellyfish pulsing under the surface, and a seal's wake from several hundred yards out.
水流平静清澈,可以看到水中一只狮鬃水母身上橙红色的流苏在水下轻轻跃动,几百码外海豹游泳的痕迹亦是清晰可见。
The improved vortex lattice method is used to predict the ground effect on wake roll-up behind a lifting surface.
用该方法研究了近地升力面尾涡卷起的地面效应。
In design condition, the flow blockage, loss, turbulence and noise at the exit focus mainly in the tip mid-passage, wake and the corner between the hub and the suction surface;
设计状态转子出口流动阻塞、损失、高水平紊流脉动及噪声主要发生在叶尖通道中部、尾迹和叶根吸力面角区;
Analysed the deformation of free surface, the influence of free surface to fluid wake, concluded the rule of fluid which changed with the Reynolds number and Froude number.
分析了自由液面在流场绕过圆柱时的变化,并分析了自由液面对流场绕过圆柱的尾迹的影响,总结流场对不同的雷诺数和弗劳德数的变化规律。
Velocity and salinity(or density) differences between the wake area and non-wake area of a surface ship may be measured with an electric conductivity probe.
在舰船尾流区与非尾流区之间存在显著的速度差和盐度(或密度)差,利用电导率探头可获得对应于这些差别的尾流电导率信号。
Based on the vortex theory, lifting surface method is used to establish wind turbine performance prediction model with rigid cylinder wake model, prescribed wake model and free-wake method.
采用基于涡系理论的模型建立刚性圆柱尾迹和预定尾迹模型的升力面法预测程序,对无偏航情况的风力机性能进行了预测。
In addition, the infrared images of thermal wake buoyant process and surface are obtained. This study provides a certain theoretical basis for the detection of underwater vehicles.
此外,还得到了热尾流的浮升和自由表面的红外图像,为水下航行体探测提供了一定的理论基础。
In addition, the infrared images of thermal wake buoyant process and surface are obtained. This study provides a certain theoretical basis for the detection of underwater vehicles.
此外,还得到了热尾流的浮升和自由表面的红外图像,为水下航行体探测提供了一定的理论基础。
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