Spiral ( swirling ) flow is a sort of special and regular vortex movement. Spiral flow is widely used in industry, e. g. in jet technology, combustion technology, pneumatic transportation, cyclone separators.
螺旋流是湍流中一种特殊的、规则的涡旋运动。
参考来源 - 管内螺旋流的实验研究与分析·2,447,543篇论文数据，部分数据来源于NoteExpress
For the whole water, the special movement is the spiral flow.
就水流的整体而言，呈螺旋流运动。
The structures and forming principles of the cylindrical spiral flow field of a dynamic hydro-cyclone were briefly described.
对动态水力旋流器圆管螺旋流场结构及形成原理作了简要描述。
The theoretical distributions of the cylindrical spiral flow were simulated and calculated using the straight cylindrical model.
同时利用直圆管柱模型，模拟计算出了圆管螺旋流的理论分布结果。
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