涡环
The nozzle structure and twisting principle of vortex spinning nozzle are both different from traditional air jet spinning and the appearance of the vortex yarn is similar to the ring spinning yarn.
喷气涡流纺的喷嘴结构和加捻原理均不同于传统喷气纺,喷气涡流纱的外观类似环锭纱。
In this paper, the subsonic unsteady aerodynamic performance of a noncoplanar wing-tail combination can be computed on condition that the velocity potential function of unsteady vortex ring is taken as an elementary solution and the method of time history ( MTH) is used.
本文以非定常涡环速度势函数为基本解,应用时间历程方法,计算非共面机一尾翼组合体的非定常气动力性能。
The range of yawing rate when turning left in hover is calculated, where the tail rotor might get into vortex ring.
根据右侧飞试验结果,估算出样机悬停回转时尾桨处于涡环状态的偏航角速度范围;
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