Secondary Flow Control in an Axial Turbine Stage

• Autorzy: Chodkiewicz R. , Sobczak K. , Borzęcki T.
• Konferencja: International Symposium SYMKOM Compressor & Turbine Flow Systems, Treory & Application Areas (21-23.09.2005; Łódź; Polska)
• Języki publikacji: EN

Abstrakty

EN

In the paper a new method of the secondary flow control is described and analyzed numerically. The interaction between the side-flow and the main flow is used for controlling the secondary flow development. Non-uniform, circumferentially distributed shutters, located between stator and rotor discs, are used for controlling the merging point of two horseshoe vortex branches. A proper shutter position allows one to decrease secondary flow losses at the hub as well as at the shroud.

Słowa kluczowe

EN

flow control; turbine; passage vortex

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2005
• Tom: nr 128, vol. 1
• Strony: 123--130
• Opis fizyczny: Bibliogr. 5 poz.

Twórcy

autor

Chodkiewicz R.

• Technical University of Lodz Institute of Turbomachinery

autor

Sobczak K.

• Technical University of Lodz Institute of Turbomachinery

autor

Borzęcki T.

• Technical University of Lodz Institute of Turbomachinery

Bibliografia

• [1] Wang H. P., Olson S. J., Goldstein R.J, and Eckert E.R.G, “Flow Visualisation in a Linear Turbine Cascade of High Performance Turbine Blading”, Transactions of the ASME, Journal of Turbomachinery, January 1997, Vol. 119 pp. 1-8.
• [2] Sieverding C.H., "Recent Progress in the Secondary Flow in Turbine Blade Passages", Journal of Engineering for Gas Turbine and Power, vol. 107, April 1985.
• [3] Yamamoto, A., "Endwall Flow/Loss Mechanisms in a Linear Turbine Cascade", ASME 1989-GT-235.
• [4] Gundlach, W., „Praca stopnia turbiny akcyjnej w zmiennych warunkach”, Prace Gl. Inst. Mech., Warszawa 1951, No. 3, pp. 5-35, (in Polish),
• [5] Gundlach, W., Hanausek P., Chodkiewicz, R., Report of the KBN-grant No. 8 T10B 002 13, 2000-08, „Interakcja przepływów wtórnych i ubocznych w stopniach turbin osiowych”, 2000, (in Polish).