This thesis deals with the axial non symmetry of air flow in the cyclone, with change of single inlet to double inlet.

针对旋风器内气流轴不对称问题，从结构上改单进口为双进口。

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Axial velocity presents a saddle-shaped distribution, and with a good axial symmetry except the inlet position. Radial velocity is less an order of magnitude with a non-axisymmetric distribution.

轴向速度呈“马鞍形”分布，径向速度值要低一个数量级，且分布呈非轴对称分布。

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