Secondary Flow Structures and Resultant Exit Flow Angle Fluctuations in High Pressure Steam Turbine Stage

• Autorzy: Świdryczuk J.
• Języki publikacji: EN

Abstrakty

EN

The object of investigation is the stage, the geometry and flow conditions of which are typical for a series of steam turbines in operation in Polish power plants. The flow analysis is based on the CFD calculations performed using FlowER, a specialized URANS code developed for studying unsteady phenomena in turbine stages and sections. The paper presents flow patterns illustrating the interaction between vortices inside and downstream of the rotor passage and the resultant exit flow angle (EFA) fluctuations recorded at the stage exit. An attempt is made to attribute individual EFA fluctuations to particular vortices and their development stages.

Słowa kluczowe

EN

turbine stage; vortices; exit flow angle

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2010
• Tom: Vol. 14, No 1-2
• Strony: 15--28
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Świdryczuk J.

• Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-952 Gdansk, Poland,

Bibliografia

• [1] Sharma O P and Butler T L 1987 ASME J. Turbomachinery 109 229
• [2] Goldstein R J and Spores R A 1988 ASME J. Heat Transfer 110 862
• [3] Wang H P, Olson S J, Goldstein R J and Eckert E R G 1997 J. Fluid Mech. 134 85
• [4] Doerffer P, Rachwalski J and Magagnato F 2001 TASK Quart. 5 165
• [5] Chaluvadi V S P 2000 Blade – Vortex Interactions in High Pressure Steam Turbines, Ph.D. Dissertation, Department of Engineering, University of Cambridge
• [6] Świrydczuk J 2003 Proc. 5 th Eur. Conf. on Turbomachinery Fluid Dynamics and Thermodynamics (Stiasny M, Sieverding C H and Bois G, Eds), Praha, Czech Republic, pp. 1157–1166
• [7] Yershov S, Rusanov A, Gardzilewicz A, Lampart P and Świrydczuk J 1998 TASK Quart. 2 319
• [8] Rusanov A V and Yershov S V 1997 Modelling and Design in Fluid-Flow Machinery (Badur J, Mikielewicz J, Bilicki Z and Sliwicki E, Eds), IMP PAN Publishing, Gdansk, Poland, pp. 153–160
• [9] Świrydczuk J 2002 ASME J. Fluids Engng 124 400
• [10] Kost F, Hummel F and Tiedemann M 2000 Proc. ASME TURBO EXPO 2000 Munich, Germany (on CD)
• [11] Świrydczuk J 2006 SYSTEMS J. Transdisciplinary Systems Science 11 284 (in Polish)