...-A型气泡为冲出水面之水柱在降落的过程产生单一气泡；第二种-B型气泡为冲出水面之水柱在降落的过程产生一 涡流环 ( vortex ring )，其周围生成一环状排列的小气泡。第三种气泡则是水柱上方的水珠降落时所生成。
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冷却液的流量通常为泵设计流量的2% - 3%，内磁转子与隔离套之间的环隙区域由于涡流而产生高热量。
The flow of coolant pump design flow is usually 2% -3%, within a set of magnetic separation between the rotor and the annulus region due to eddy current arising from high-calorie.
本文从旋翼的广义经典涡流理论出发，通过环量对诱导速度的贡献的简化处理，推导出旋翼诱导速度的二阶分布。
In this paper, firstly, relations of first two harmonic induced velocities to the lower and same-order harmonic circulations are obtained from the generalized classical vortex theory of the rotor.
结合动量理论和涡流理论，推导了桨叶环量方程，用广义尾流模型计算了旋翼下洗流场。
Combining momentum theory and vortex theory, rotor circulation equation was deduced. The rotor down-wash flow field was calculated using generalized down-wash flow model.
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