选择初值迭代求解自由涡线、涡核的强度和位置。
The strength and position of vortical cores and lines can iteratively be got by satisfying boundary conditions.
旋转射流的切向速度分布相当于射流中存在一个旋转的涡核。
The tangential velocity distribution measured in this study is similar to a vortex core existing along the jet axis.
首先从预定的广义尾流入手,并引入尖涡涡核作用的半经验修正,对旋翼的自由尾流进行计算分析。
Beginning with the prescribed wake model, a Semi Empirical Correction for the vortex core effect on rotor wake is made and free wake calculation is carried out.
结果显示:涡管流函数是时间的周期函数,并被表征为一系列在涡核内均匀分布螺旋涡丝流函数的叠加。
The result showed that the stream function of vortex tube was expressed as the superposition of the stream functions of vortex filament within the vortex core.
建立了一个旋翼桨尖涡初始涡核半径计算模型,用于消除旋翼自由尾迹分析中桨尖涡涡核半径依靠经验设定的现状。
A model is developed for the calculation of the initial rotor tip vortex core radius aiming at eliminating the empirical parameters of the tip vortex in rotor free-vortex wake analysis.
潜艇推进系统据信是核、涡-电布置,包括一台压水反应堆(PWR)组成,采用单驱动轴。
The submarine's propulsion system is believed to be nuclear, turbo-electric arrangement, consisting of one pressurised water reactor (PWR), with one shaft.
潜艇推进系统据信是核、涡-电布置,包括一台压水反应堆(PWR)组成,采用单驱动轴。
The submarine's propulsion system is believed to be nuclear, turbo-electric arrangement, consisting of one pressurised water reactor (PWR), with one shaft.
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