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Journal article

Toward Improved Rotor-Only Axial Fans—Part II: Design Optimization for Maximum Efficiency

By Sørensen, Dan Nørtoft1; Thompson, M. C.2; Sørensen, Jens Nørkær1

From

Department of Energy Engineering, Technical University of Denmark1

Monash University2

Numerical design optimization of the aerodynamic performance of axial fans is carried out, maximizing the efficiency in a designinterval of flow rates. Tip radius, number of blades, and angular velocity of the rotor are fixed, whereas the hub radius andspanwise distributions of chord length, stagger angle, and camber angle are varied to find the optimum rotor geometry.Constraints ensure a pressure rise above a specified target and an angle of attack on the blades below stall.

The optimizationscheme is used to investigate the dependence of maximum efficiency on the width of the design interval and on the hub radius.

Language: English
Year: 2000
Pages: 324-329
ISSN: 1528901x and 00982202
Types: Journal article
DOI: 10.1115/1.483260
ORCIDs: Sørensen, Jens Nørkær

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