Performance prediction of centrifugal pumps with CFD-tools

• Autorzy: Dick E. , Vierendeels J. , Serbruyns S. , Vande Voorde J.
• Konferencja: Seminar/summer school on "CFD for turbomachinery applications" (01-03.09.2001, Gdańsk, Poland)
• Języki publikacji: EN

Abstrakty

EN

The CFD code FLUENT, version 5.4, has been used for the flow analysis of two test pumps of end-suction volute type: one of low specific speed and one of medium specific speed. For both, head as a function of flow rate for constant rotational speed is known from experiments. FLUENT provides three calculation methods for analysis of turbomachinery flows: the multiple reference frame method (MRF), the mixing plane method (MP) and the sliding mesh method (SM). In all three methods, the flow in the rotor is calculated in a rotating reference frame, while the flow in the stator is calculated in an absolute reference frame. In the MRF and MP methods steady flow equations are solved, while in the SM method, unsteady flow equations are solved. The SM method does not introduce physical approximations. The steady methods approximate the unsteady interaction between rotor and stator. The cost of the unsteady method is, however, typically 30 to 50 times higher than the cost of the steady methods. It is found that the MRF and MP methods lead to completely erroneous flow field predictions for flows far away from the best efficiency point. This makes the steady methods useless for general performance prediction.

Słowa kluczowe

EN

centrifugal pumps; CFD analysis; performance prediction; computational fluid dynamics CFD; pumps

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2001
• Tom: Vol. 5, No 4
• Strony: 579--594
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Dick E.

• Department of Flow, Heat and Combustion Mechanics, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Gent, Belgium

autor

Vierendeels J.

• Department of Flow, Heat and Combustion Mechanics, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Gent, Belgium

autor

Serbruyns S.

• Department of Flow, Heat and Combustion Mechanics, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Gent, Belgium

autor

Vande Voorde J.

• Department of Flow, Heat and Combustion Mechanics, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Gent, Belgium

Bibliografia

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• [8] Gugau M, Matyschok B and Stoffel B 2001 Experimental and 3D numerical analysis of the flow field in a turbocharger compressor Proceedings: Fourth European Turbomachinery Conference SGE, pp. 297 – 306
• [9] Anonymous 1982 Design specifications. IMechE Conference Publications C184/82; and Anderson H, Salisbury A, Dziewulski T and Burgoyne D 1982 Discussion. IMechE Conference Publications C186/82