Hydraulic development of a centrifugal pump impeller using the agile turbomachinery design system

• Autorzy: Denus K. , Osborne C.
• Konferencja: Seminar/summer school on "CFD for turbomachinery applications" (01-03.09.2001, Gdańsk, Poland)
• Języki publikacji: EN

Abstrakty

EN

The impeller of an existing industrial pump (with both geometry and performance known) was analyzed and redesigned using an integrated, design/analysis, turbomachinery geometry modeling and flow simulation system. The purpose of the redesign was to achieve improved impeller performance (at the duty point). Fluid dynamics and geometry modeling parts of the design/analysis system were systematically applied: a) to analyse the existing impeller (impeller A), which was designed using conventional (routine in industry) hydraulic layout procedures, and b) to develop a new impeller (impeller B), using a coupled, multilevel 1D-Q3D-3D for the design and optimization. This paper discusses the features and advantages of the integrated design system, in which the coupled CAD/CFD approach is fully implemented. The analysis results are presented for impellers A and B, with the latter demonstrating a predicted increased efficiency and smaller size. Comparisons of the CFD results for both impellers reveal internal flow features that explain the improved impeller B performance levels.

Słowa kluczowe

EN

impeller design; CFD analysis; turbomachinery design optimization; internal flow analysis

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2002
• Tom: Vol. 6, No 1
• Strony: 79--100
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Denus K.

• CTD Technology - Ing. Buru Denus, Stationstrasse 37, Postfach 12, CH-8487 Zell, Switzerland

autor

Osborne C.

• Concepts NREC, 217 Billing Farm Rd., White River Jtc., VT 05001, USA

Bibliografia

• [1] Japikse D, Marscher W D and Furst R B 1997 Centrifugal Pump Design and Performance Concepts ETI Inc.
• [2] Kaupert K 1997 Unsteady Flow Fields in a High Specific Speed Centrifugal Pump, PhD Dissertation, ETH-Zurich
• [3] Japikse D 1987 ASME J. Turbomachmery 109 1
• [4] Japikse D 1991 Proc. Int. Symp. SYMKOM, Lodz, Poland, pp. 75-107
• [5] Howard J H G and Osborne C 1977 ASME J. Fluids Engineering 99 141
• [6] Howard J H G, Osborne C and Japikse D 1994 ASME Paper 94-GT-148
• [7] CCAD - User’s Guide, Concepts NREC
• [8] PUMPAL - User’s Guide, Concepts NREC
• [9] Denton J 1994 AGARD LS 195, Turbomachinery Design Using CFD
• [10] Miner S M 1997 ASME Paper FEDSM97-3354
• [11] Dawes W 1987 IMechE Paper C267/87
• [12] Dawes W 1988 A Computer Program for the Analysis of Three-Dimensional Viscous Compressible Flow in Turbomachinery Blade Row Whittle Laboratory, Cambridge University, UK
• [13]Tsuei H H, Oliphant K and Japikse D1999 Proc. IMechE Symp. CFD Technical Developments and Future Trends, London, UK
• [14] Goto A 1990 ASME Paper 90-GT-36