Vortex interactions in an hp turbine rotor and their effect on stage performan

• Autorzy: Swirydczuk J
• Konferencja: International Symposium SYMKOM Compressor & Turbine Flow Systems, Treory & Application Areas (15-17.09.2008; Łódź; Polska)
• Języki publikacji: EN

Abstrakty

EN

The paper presents a CFD analysis of the process of development and mutual interactions of vortex structures in an HP turbine rotor and its effect on stage performance. Two stages selected for examination revealed different efficiency levels and loss distribution patterns. In the low-efficiency stage the analysis, performed in a steady-state mode on a fine-resolution grid, made it possible to trace the interaction of a horseshoe vortex with the separation structures forming in the rear part of the rotor passage, and evaluate the resultant fluctuations of stage performance parameters.

Słowa kluczowe

EN

turbine stage; numerical analysis; grid resolution

PL

stopień turbinowy; analiza numeryczna

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2008
• Tom: nr 133
• Strony: 335--342
• Opis fizyczny: Bibliogr. 2 poz.

Twórcy

autor

Swirydczuk J

• Institute of Fluid-Flow Machinery PAS Gdansk, Poland

Bibliografia

• [1] Yershov, S., Rusanov, A., Gardzilewicz, A., Lampart, P., and Swirydczuk, J., 1998, “Numerical Simulation of 3D Flow in Axial Turbomachines”, TASK Quarterly, vol. 2, pp. 319-347
• [2] Świrydczuk J., 2006, “Grid resolution in numerical analyses of stator/rotor interaction”, Systems – Journal of Transdisciplinary Systems Science, vol. 11, pp. 284-291 (in Polish).