Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30121
Modeling of Gas Turbine Cooled Blades

Authors: A. Pashayev, D. Askerov, R. Sadiqov, A. Samedov, C. Ardil

Abstract:

In contrast to existing methods which do not take into account multiconnectivity in a broad sense of this term, we develop mathematical models and highly effective combination (BIEM and FDM) numerical methods of calculation of stationary and quasi-stationary temperature field of a profile part of a blade with convective cooling (from the point of view of realization on PC). The theoretical substantiation of these methods is proved by appropriate theorems. For it, converging quadrature processes have been developed and the estimations of errors in the terms of A.Ziqmound continuity modules have been received. For visualization of profiles are used: the method of the least squares with automatic conjecture, device spline, smooth replenishment and neural nets. Boundary conditions of heat exchange are determined from the solution of the corresponding integral equations and empirical relationships. The reliability of designed methods is proved by calculation and experimental investigations heat and hydraulic characteristics of the gas turbine first stage nozzle blade.

Keywords: Gas turbine, cooled blade, nozzle blade, temperature field.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1314793

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 291

References:


[1] Pashaev A.M., Sadykhov R.A., Iskenderov M.G., Samedov A.S., Sadykhov A.H. The effeciency of potential theory method for solving of the tasks of aircraft and rocket design. 10-th National MechanicConference. Istanbul Technic University, Aeronautics and astronautics faculty, Istanbul, Turkey, July, 1997, p.61-62.
[2] Pashayev A.M., Askerov D.D., Sadiqov R.A., Samedov A.S. Numerical modeling of gas turbine cooled blades. International Research Journal of Vilnius Gediminas, Technical University. «Aviation», vol. IX, No3, 2005, p.9-18.
[3] Pashaev A.M., Sadykhov R.A., Samedov A.S. Highly effective methods of calculation temperature fields of blades of gas turbines. V International Symposium an Aeronautical Sciences “New Aviation Technologies of the XXI century”, A collection of technical papers, section N3, Zhukovsky, Russia, august,1999.
[4] L.N. Zisina-Molojen and etc., Heat exchange in turbomachines. M., 1974
[5] G. Galicheiskiy, A thermal guard of blades, M.: MAI 1996.
[6] A.M.Pashaev, R.A.Sadiqov, C.M.Hajiev, The BEM Application in development of Effective Cooling Schemes of Gas Turbine Blades. 6th Bienial Conference on Engineering Systems Design and Analysis, Istanbul, Turkey, July, 8- 11,2002.
[7] Abasov M.T., Sadiqov A.H., Aliyarov R.Y. Fuzzy neural networks in the system of oil and gas geology and geophysics // Third International Conference on Application of Fuzzy Systems and Soft computing/ Wiesbaden, Germany, 1998,- p.108-117.
[8] Yager R.R., Zadeh L.A. (Eds). Fuzzy sets, neural networks and soft computing. VAN Nostrand Reinhold. N.-Y. - No. 4, 1994.
[9] Mohamad H. Hassoun. Fundamentals of artificial neutral networks / A Bradford Book. The MIT press Cambridge, Massachusetts, London, England, 1995
[10] Pashaev A.M., Sadykhov R.A., Samedov A.S., Mamedov R.N. The solution of fluid dynamics direct problem of turbomachines cascades with integral equations method. Proceed. NAA. Vol. 3, Baku, 2003
[11] V.S. Beknev, V.M. Epifanov, A.I. Leontyev, M.I. Osipov and ets. Fluid dynamics. A mechanics of a fluid and gas. Moscow, MGTU nam. N.E. Bauman, 1997, 671 p.
[12] S.Z. Kopelev, A.F.Slitenko Construction and calculation of GTE cooling systems. Kharkov, “Osnova”,1994, 240 p.
[13] L.V. Arseniev, I.B. Mitryayev, N.P. Sokolov The flat channels hydraulic resistances with a system of jets in a main stream . “Energetika”, 1985, No 5, p.85-89.