Numerical investigation of differential speed operation of two impellers of contra-rotating axial-flow fan

A contra-rotating axial-flow fan is prone to stalling and motor overload at partial flow rates. Moreover, its efficiency decreases sharply at a high flow rate, which is accompanied by disparity between the shaft powers of the two impellers and the light loads of their motors. It is necessary to main...

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Bibliographic Details
Main Authors: Xiaobo Sun, Dawei Meng, Baowen Liu, Qian Wang
Format: Article
Language:English
Published: SAGE Publishing 2017-10-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1177/1687814017720083