PIV experiment is carried out on certain axial fan with and without external duct.
对某轴流通风机进行了有无外风筒的(开式)PIV实验。
The result comparison between the numerical simulation and PIV experiment shows that VOF model can well simulate the flow in the pump suction sump.
数值模拟结果和试验结果的对比表明，内部流场的模拟结果也与试验数据吻合较好，该模型能够很好的模拟吸水池的内部流动状况。
In the PIV flow visualization experiment, flow separation takes place at the top and bottom edges and two large vortices behind the model that remain attached to the back of the model are observed.
在PIV流迹显示试验中观察到在模型上下两侧发生流动分离，后方有两个大旋涡，且在两个旋涡中间回流处测点的风压系数大于附近测点。
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