Using impeller flow area optimization model, flow area of the pump was selected.
采用叶轮轴面过流面积优化模型，对叶轮的轴面流道参数进行了优化设计。
In the double-channel impeller, the flow has better flow pattern without obvious back-flow area.
双流道叶轮内流动也不均匀，但没有出现明显的回流区，流态较好。
In the double-channel impeller, the flow has better flow pattern without obvious back-flow area.
双流道叶轮内流动也不均匀，但没有出现明显的回流区，流态较好。
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