Numerical simulation and analysis of the flow in a two-staged axial fan

In this paper, numerical simulation was performed for the internal three-dimensional turbulent flow field in the two-stage axial fan using steady three-dimensional in-compressible Navier-Stokes equations coupled with the Realizable turbulent model. The numerical simulation results of the steady anal...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2016-05, Vol.129 (1), p.12060-12072
Main Authors: Xu, J Q, Dou, H S, Jia, H X, Chen, X P, Wei, Y K, Dong, M W
Format: Article
Language:English
Subjects:
Compressibility
Computational fluid dynamics
Computer simulation
Flow characteristics
Fluid flow
Impellers
Mathematical models
Navier-Stokes equations
Potential flow
Simulation
Three dimensional flow
Turbulent flow
Wakes
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Summary:In this paper, numerical simulation was performed for the internal three-dimensional turbulent flow field in the two-stage axial fan using steady three-dimensional in-compressible Navier-Stokes equations coupled with the Realizable turbulent model. The numerical simulation results of the steady analysis were combined with the flow characteristics of two- staged axial fan, the influence of the mutual effect between the blade and the vane on the flow of the two inter-stages was analyzed emphatically. This paper studied how the flow field distribution in inter-stage is influenced by the wake interaction and potential flow interaction of mutual effect in the impeller-vane inter-stage and the vane-impeller inter-stage. The results showed that: Relatively, wake interaction has an advantage over potential flow interaction in the impeller-vane inter-stage; potential flow interaction has an advantage over wake interaction in the vane-impeller inter-stage. In other words, distribution of flow field in the two interstages is determined by the rotating component.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/129/1/012060