Numerical analysis of internal flow phenomena in a multi-blade centrifugal fan

• Autorzy: Wang J. , Ou Y. , Wu K.
• Języki publikacji: EN

Abstrakty

EN

A three-dimensional, steady, incompressible, turbulent flow field inside a multi-blade centrifugal fan used in an air-conditioner has been analyzed numerically. Reynolds-averaged Navier-Stokes equations with the standard k-epsilon turbulence model have been discretized by the finite volume method. The calculation results have shown complex three-dimensional characteristics of the flow, especially in the blade passages near the shroud side. The results have revealed a boundary layer separating the flow from the leading edge on the blade suction surface, the flow's reversal from the high pressure region inside the volute to the low pressure region near the impeller inlet, the flow's recirculation near the shroud side, a jet-wake pattern at the rotor exit, pressure fluctuation on the blade surface, etc. Some of the numerical results agree well with previous experiment.

Słowa kluczowe

EN

multi-blade centrifugal fan; internal flow field; CFD

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2005
• Tom: Vol. 9, No 2
• Strony: 245--256
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Wang J.

• School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China

autor

Ou Y.

• School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China

autor

Wu K.

• School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, P. R. China

Bibliografia

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