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- Title
Optimization design of annular axial cooling fan based on circumferential vorticity analysis.
- Authors
Hengtao Shu; Hongwei Yuan
- Abstract
As complex axial flow machinery, lots of vortex distributes around engine cooling fan. Negative circumferential vorticity (CV) leads to low efficiency and power loss. In order to investigate the adverse effects of CV on aerodynamic performances of the fan, a mathematical physical relationship between CV and aerodynamic performances is established, and the location of the negative CV is found by the method of vorticity analysis. An outer ring is designed for annular cooling fan, and the parameter of aperture rate is defined in this paper. Both static pressure and power loss is overall considerate during the optimization process of the outer ring, and putting forward that optimum range of the aperture rate is different for various annular fans.
- Subjects
STRUCTURAL optimization; VORTEX motion; AXIAL flow; AERODYNAMICS; ANNULAR flow; MATHEMATICAL physics
- Publication
Vibroengineering Procedia, 2018, Vol 17, p73
- ISSN
2345-0533
- Publication type
Article
- DOI
10.21595/vp.2018.19843