On the prediction of flow patterns and losses in HP axial turbine stages using 3D RANS solver with two turbulence models

• Autorzy: Lampart P. , Świrdyczuk J. , Gardzielewicz A.
• Języki publikacji: EN

Abstrakty

EN

An experimentally tested air turbine stage and a real high-pressure (HP) steam turbine stage are calculated using the 3D RANS solver FlowER supplemented with the Baldwin-Lomax and Menter shear stress transport (SST) models. The computations of the model air turbine stage show that the Menter SST model gives better agreement with the experimental data as far as the span-wise distribution of exit velocities and swirl angle. The comparison of performance of the two turbulence models exhibits differences in predicting flow patterns and losses in the considered HP turbine stage. The main differences concern the development of secondary flows and separations. There is a significant span-wise redistribution of losses between these two models. The tendency is that for the same relatively refined grid resolutions, the level of pitch/span averaged losses for the Menter SST turbulence model is slightly above that of Baldwin-Lomax.

Słowa kluczowe

EN

high-pressureaxial turbine; RANS solver; RANS equations; turbulence modelling; kinetic energy losses

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2001
• Tom: Vol. 5, No 2
• Strony: 191--206
• Opis fizyczny: Bibliogr. 18 poz., rys., tab.

Twórcy

autor

Lampart P.

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

autor

Świrdyczuk J.

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

autor

Gardzielewicz A.

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

Bibliografia

• [1] Baldwin B S and Lomax H 1978 AIAA Paper No 78-257
• [2] Jones W P and Launder B E 1973 Int. J. Heat and Mass Transfer 16 (10) 1119
• [3] Launder B E and Sharma B I 1974 Letters in Heat and Mass Transfer 1 (2) 131
• [4] Chien K Y 1982 AIAA J. 20 (1) 33
• [5] Wilcox D C 1988 AIAA J. 26 (11) 1299
• [6] Chima R V 1996 AIAA Paper No 96-0248
• [7] Wilcox D C 1994 AIAA J. 32 (2) 247
• [8] Menter F R 1994 AIAA J. 32 (8) 1598
• [9] Johnson D A and King L S 1985 AIAA J. 19 (11) 1684
• [10] Yershov S and Rusanov A 1996 The high resolution method of Godunov’s type for 3D viscous flow calculations Proc. 3 Colloq. Proc. Simulation, Espoo, Finland, June 13–16
• [11] Yershov S and Rusanov A 1996 The application package FlowER for calculation of 3D viscous flows through multi-stage turbomachinery Certificate of Ukrainian state agency of copyright and related rights, Kiev, Ukraine, February 19
• [12] Yershov S, Rusanov A, Gardzilewicz A, Lampart P and Swirydczuk J 1998 TASK Quarterly 2 (2) 319
• [13] Wilcox D C 1993 Turbulence modelling for CFD DCW Industries Inc., La Canada, California
• [14] Menter F R 1996 Trans. ASME J. Fluids Engineering 118 (3) 514
• [15] Larsson J 1996 Numerical simulation of turbine blade heat transfer Licentiate of Engineering Thesis, Chalmers University of Technology, Sweden
• [16] Yershov S, Rusanov A and Shapochka A 2001 Proc. Conf. V ISAIF’2001 September 4–7, Gdansk, Poland (to appear)
• [17] Yershov S and Rusanov A 1997 Modification of algebraic turbulence model used in code FlowER in Modelling Turbulence in Technical Applications Copybooks of Institute of Fluid-Flow Machinery, No 486, Gdansk, Poland
• [18] Wiechowski S 1988 Results of investigations of annular cascades TK8, TK9 and models TK8-TW3, TK9-TW3 Rep. Institute of Thermal Engng. Łódz (in Polish)