3D inviscid flutter of rotor blades and stator/rotor stage

• Autorzy: Rządkowski R. , Gnesin V.
• Konferencja: Seminar/summer school on "CFD for turbomachinery applications" (01-03.09.2001, Gdańsk, Poland)
• Języki publikacji: EN

Abstrakty

EN

The approach is based on solution of the coupled aerodynamic-structure problem for 3D flow through the turbine stage in which fluid and dynamic equations are integrated simultaneously in time. An ideal gas flow through the mutually moving stator and rotor blades with periodicity on the whole annulus is described by unsteady Euler conservation equations, which are integrated using the explicit monotonous finite-volume difference scheme of Godunov-Kolgan and moving hybrid H-H grid. The structure analysis uses the modal approach and 3D finite element model of a blade. A calculation was performed for the last stage of the steam turbine with rotor blades of 0.765 m.

Słowa kluczowe

EN

3D inviscid flutter; flutter; blades; stator/rotor stage; rotor blades; unsteady forces; 3D finite element model

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2001
• Tom: Vol. 5, No 4
• Strony: 567--577
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

Twórcy

autor

Rządkowski R.

• Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-952 Gdansk, Poland
• Polish Naval Academy, Smidowicza 69, 81-103 Gdynia, Poland

autor

Gnesin V.

• Department of Aerohydromechanics, Institute for Problems in Machinery, Ukrainian National Academy of Sciences, 2/10 Pozharsky, 310046 Kharkov, Ukraine

Bibliografia

• [1] Marshall J G and Imregun M 1996 Journal of Fluids and Structures 10 237
• [2] Bakhle M A, Reddy T S R and Keith T G 1992 AIAA Journal 30 (1) 163
• [3] He L 1984 Journal of Computational Fluid Dynamics 3 217
• [4] Moyroud F, Jacquet-Richardet G and Fransson T H 1996 A Modal Coupling for Fluid and Structure Analysis of turbomachines Flutter. Application to a Fan Stage ASME Paper 96-GT-335 1–19
• [5] Rzadkowski R 1998 Dynamics of Steam Turbine Blading, Part Two Bladed Discs Ossolineum Wrocław-Warszawa
• [6] Rzadkowski R and Gnesin V 2000 The Numerical and Experimental Verification of the 3D Inviscid Code Transaction of the Institute of Fluid-Flow Machinery 106 69
• [7] Rzadkowski R and Gnesin V 2001 Aeroelastic Behaviour of the Last Stage Steam Turbine Blades. Part I. Harmonic Oscillations Transaction of the Institute of Fluid-Flow Machinery 108 59
• [8] He L and Ning W 1998 Nonlinear Harmonic Analysis of Unsteady Transonic Inviscid and Viscous Flows Unsteady Aerodynamics and Aeroelasticity of Turbomachines, Proc. of the 8th International Symposium, September 14–18, Stockholm, Sweden, pp. 183–189
• [9] Bendiksen O O 1998 Nonlinear Blade Vibration and Flutter in Transonic Rotors Proc. of ISROMAC – 7, The 7th Intern. Symp. on Transport Phenomena and Dynamics of Rotating Machinery, February 22–26, Honolulu, Hawaii, USA
• [10] Gnesin V I, Rzadkowski R and Kolodyazhnaya L V 2000 A coupled Fluid-Structure Analysis for 3D Flutter in Turbomachines ASME Paper 2000-GT-0380
• [11] Gnesin V I and Rzadkowski R 2000 The Theoretical Model of 3D Flutter in Subsonic, Transonic and Supersonic Inviscid Flow Transaction of the Institute of Fluid-Flow Machinery 106 45
• [12] Gnesin V and Rzadkowski R 2001 Aeroelastic Behaviour of the Last Stage Steam Turbine Blades. Part II. Coulped Fluid-Structure Oscillations Harmonic Oscillations Transaction of the Institute of Fluid-Flow Machinery 108 73
• [13] Carstens V and Belz J 2000 Numerical Investigation of Nonlinear Fluid-Structure Interaction in Vibrating Compressor Blades ASME Paper 2000-GT-0381
• [14] Hall K C and Silkowski P D 1997 ASME Journal of Turbomachinery 119 85
• [15] Namba M and Ishikawa A 1983 ASME Journal of Engineering for Power 105 138
• [16] Schulten J B H M 1982 AIAA Journal 20 (10) l352
• [17] Bathe K and Wilson E 1976 Numerical Methods in Finite Element Analysis Prentice-Hall, Inc Englewood Cliffs, New Jersey