The vortex is one of the important features of flow field. This paper detects the vortexflow based on pattern matching method.
涡流是流场的重要特征之一，本文采用基于模板匹配的方法来识别流场的涡流特征。
2
The results show that the pressure signal changes are closely related to the vibrations, both of which are caused by the unsteady characteristics of the vortexflow.
分析结果表明，水泵吸水池内部流动所引起的压力和振动变化关系密切，都是由吸入涡的非定常特性引起的。
3
It is shown that there are two regions in the cyclone, the steadily tangential flow in the spiral channel and the combined vortexflow in the centre.