Investigation of swirling flow in diffusers installed at the exit of an axial-flow pump

• Autorzy: Kochevsky A. N.
• Konferencja: Seminar/summer school on "CFD for turbomachinery applications" (01-03.09.2001, Gdańsk, Poland)
• Języki publikacji: EN

Abstrakty

EN

The swirling flow in discharge diffusers with a converging rotating hub and diverging casing is modeled by reduced Reynolds equations, and a single sweep method is used for their solution. The flow was probed at the inlet and outlet section of these diffusers under various pump capacities and, therefore, various swirl rates. The correspondence of results in the operating range of the pump was satisfactory concerning the velocity distributions in the outlet section as well as concerning the coefficient of energy losses. The characteristic curves of the pump with different internal angles of discharge diffusers are presented and the optimal internal angle is obtained.

Słowa kluczowe

EN

axial flow pump; discharge diffusers; axisymmetrical flow; reduced Reynolds equations; single sweep method

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2001
• Tom: Vol. 5, No 4
• Strony: 603--610
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Kochevsky A. N.

• Department of Fluid Mechanics, Sumy State University, Rimsky-Korsakov 2, 40007 Sumy, Ukraine

Bibliografia

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