Overview of Performance Modeling and New Model Development for Radial Turbomachinery Using Optimization Search Methodology with an Extensive Database

• Autorzy: Japikse D. , Pelton R. , Oliphant K. N. , Dubitsky O.
• Konferencja: International Symposium SYMKOM Compressor & Turbine Flow Systems, Treory & Application Areas (21-23.09.2005; Łódź; Polska)
• Języki publikacji: EN

Abstrakty

EN

Performance modeling of centrifugal and mixed-flow compressors and pumps has developed substantially over the past decades. The first half of the 1900s provided important insights as to the basic structure of the fluid dynamic process; the period from 1960 to 2005 provided 45 years of continuous analytical modeling development. Throughout the past century, the radial turbomachinery field awaited the development of a comprehensive loss, diffusion, and deviation modeling system similar to those that evolved for axial turbomachinery. Recently, a concrete foundation for an appropriate modeling system has developed. In this presentation, the basic models are reviewed and, in turn, the available database (more than 250 cases) is surveyed. A fully computerized, data synthesis process, employing optimization search techniques, is presented by which new analytical models can be thoroughly matched to available data.

Słowa kluczowe

EN

compressor; impeller; mixed-flow pump

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2005
• Tom: nr 128, vol. 1
• Strony: 243--264
• Opis fizyczny: Bibliogr. 19 poz.

Twórcy

autor

Japikse D.

• Concepts NREC, White River Jct., VT USA

autor

Pelton R.

• Concepts NREC, White River Jct., VT USA

autor

Oliphant K. N.

• Concepts NREC, White River Jct., VT USA

autor

Dubitsky O.

• Concepts NREC, White River Jct., VT USA

Bibliografia

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• Dean, R.C., Jr., Wright, D.D., and Runstadler, P.W., Jr., “Fluid Mechanics Analysis of High-Pressure-Ratio Centrifugal Compressor Data,” USAAVLABS Technical Report 69-76, February 1970.
• Dubitsky, O., Japikse, D., Pelton, R., “Vaneless Diffuser Advanced Model,” 2005.
• Japikse, D., “A Critical Evaluation of Stall Concepts for Centrifugal Compressors and Pumps,” Concepts ETI, Inc., 1984a.
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• Japikse, D., “Assessment of Single-and Two-Zone Modeling of Centrifugal Compressors - Studies in Component Performance: Part 3,” Presented at ASME Gas Turbine Conference and Exhibit, Houston, TX, 1985.
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• Japikse, D., Dubitsky, O., Oliphant, K., Pelton, R., Maynes, D., Bitter, J., “Multi-Variable, High Order, Performance Models,” 2005.
• Johnston, J.P., and Dean, R.C., Jr., “Losses in Vaneless Diffusers of Centrifugal Compressors and Pumps,” ASME Paper No. 65-FE-1, Journal of Basic Engineering, 1965, pp. 1-12.
• Pelton, R., Japikse, D., Maynes, D., Oliphant, K., “Turbomachinery Performance Models,” 2005.
• Stanitz, J.D., “One-Dimensional Compressible Flow in Vaneless Diffusers of Radial or Mixed-Flow Centrifugal Compressors, including Effects of Friction, Heat Transfer and Area Change,” NACA TN 2610.
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