Finally, the flow fields at the exit of the diffusing tower are very uneven, and there exists a large area of low velocity, leading to a decrease of the static efficiency of the fan.

• 各个静止部件单独计算时相比较，在整机计算条件下风机的扩散筒和扩散塔的流场相互干涉比较严重，导致内部流场状况较差，流动损失增大；