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在扇风机制造业中,设计者必须根据用户需要,设计各种不同风量、风压的扇风机。因此,设计者只有对现有扇风机性能做出适当的改变:如改变转速、减小叶轮外径或减少原有扇风机叶轮叶片的宽度或数量来达到上述目的。现就改变叶轮叶片数来预测离心式扇风机的性能,即根据装有n_1个叶片的离心式扇风机的已知总压力-流量曲线,利用准解析推理,预测装有n_2个叶片的同一扇风机总压力-流量曲线。而后,将所获结
Fan fan manufacturing industry, designers must be based on user needs, design a variety of different air volume, wind pressure fan. Therefore, the designer can only make appropriate changes to the performance of the existing fans: such as changing the rotation speed, reducing the outer diameter of the impeller or reducing the width or the number of original fan blades of the fan to achieve the above objective. Now we change the number of impeller blades to predict the performance of centrifugal fans, that is, based on the known total pressure-flow curve of centrifugal fan with n_1 blades, the same fan with n_2 blades is predicted by quasi-analytical inference Total fan pressure - flow curve. After that, you will get the knot