Effect of twisted blade roots on the performance and internal flow of non-volute centrifugal fan

Zhikun Wang, Genqiang Shao, Zhengdao Wang, Hui Yang, Yuqian Zhang, Wei Zhang, Yikun Wei, Zhejiang Key Laboratory of Multiflow and Fluid Machinery, Zhejiang Sci-Tech University, Zhejiang Mingzhen Electric , Electronic Co, General Machinery and Key Basic Component Innovation Center , State Key Laboratory of High-end Compressor and System Technology, Heat Transfer Research Institute, General Machinery Research Institute Co

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy

Published online on March 14, 2026

Abstract

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, Ahead of Print.
In this paper, the effects of twisting blade roots on the performance and internal flow of the non-volute centrifugal fan are deeply studied by means of computational fluid dynamics and experiment tests. The midpoint of the blade root centerline as the ...