Review of loss models for high pressure turbines

• Autorzy: Back da Trindade D. , Bugała P. , Simone D.

Identyfikatory

DOI

10.5604/01.3001.0012.2772

• Języki publikacji: EN

Abstrakty

EN

This article presents a literature review about the physical analysis of the loss models, which are used in offdesign procedure for high-pressure turbines. A high-pressure turbine is designed to have maximum performance at design point. However, engines are operating in different conditions, and the comprehension of off-design conditions is very important. The loss mechanisms are very complex and predictions considering empirical methods are a good approach to have preliminary results. Based on these results, different researches have proposed theories about the loss mechanisms, and over the time, these models have been modified to describe better the phenomena involved between blades and flow. Once the physical mechanisms behind the loss models are known, it is possible to compare them and understand the reason why the results given for some methods present a higher agreement to experimental or numerical data. In this framework, 2D numerical simulations of the flow around the blades of an axial high pressure turbine with different off design conditions have been realized, by using ANSYS FLUENT® code, to show the losses described by some of these models. Using these simulations a loss model has been selected and implemented in Matlab® to compare its results with the experimental data found in literature.

Słowa kluczowe

EN

turbomachinery; gas turbines; high-pressure turbine; HPT; loss model

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2018
• Tom: Vol. 25, No. 2
• Strony: 38--44
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Back da Trindade D.

• University of Brasilia, Aerospace Department − Gama Faculty St. East Projection A – Gama, 72444-240, Brasília – DF tel.: [phone]

autor

Bugała P.

• Institute of Aviation, Department of Aerodynamics and Flight Mechanics Krakowska Av. 110/114, 02-256 Warsaw, Poland tel.: [phone] ext. 359, fax: [phone]

autor

Simone D.

• University of Brasilia, Aerospace Department - Gama Faculty St. East Projection A – Gama, 72444-240, Brasília – DF tel.: [phone]

Bibliografia

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• [2] Balicki, W., Chachurski, R., Głowacki, P., Godzimirski, J., Kawalec, K., Kozakiewicz, A., Pągowski, Z., Rowiński, A., Szczeciński, J., Szczeciński S., Lotnicze silniki turbinowe.Konstrukcja – eksploatacja-diagnostyka − Część 1, Biblioteka Naukowa Instytutu Lotnictwa Nr 30, Warszawa 2010.
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• [4] Bugała, P., Review of design of high-pressure turbine, Journal of KONES, Vol. 24, No. 1, 2017.
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• [8] Dunham, J., Came, P. M., Improvements to the Ainley-Mathieson Method of Turbine Performance Prediction, ASME, 70-GT-2, 1970.
• [9] Kacker, S. C., Okapuu, U., A Mean Line Prediction Method for Axial Flow Turbine Efficiency, ASME, 81-GT-58, 1982.
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• [13] Sieverding, C. H., Axial Turbine Performance Prediction Methods, NATO ASI Series No. 97B, Vol. 2, 1985.
• [14] Szczeciński, S., Studium o luzach wierzchołkowych zespołów wirnikowych lotniczych silników turbinowych jako parametrze konstrukcyjnym i eksploatacyjnym, Dodatek do Biuletynu WAT, Z. 4, 1973.
• [15] Turner, E. R., Wilson, M. D., Hylton, L. D. Kaufman, R. M., Analytical and Experimental Evaluation of Surface Heat Transfer Distributions with Leading Edge Showerhead Film Cooling, Allison Gas Turbine Division General Motors Corporation Indianapolis, Indiana 1985.
• [16] Wei, N., Significance of Loss Model in Aerothermodynamic Simulation for Axial Turbines, Doctoral Thesis, 2000.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).