Numerical solution of a two-dimensional inverse heat transfer problem in gas turbine blade cooling

• Autorzy: Frąckowiak A. , Ciałkowski M. , Wolfersdorf J.
• Języki publikacji: EN

Abstrakty

EN

The problem presented in the paper pertains to cooling of gas turbine blades for known values of external heat transfer coefficient and temperature distributions at the blade outer surface. Taking into account that two conditions are given at the same boundary, such a problem is ill-posed in the Hadamard sense. This means that the difficulties related to solving the inverse problems do not depend on the method used for it. The paper presents a solution to the problem attained with the help of the Boundary Element Method for 2-D multiply connected regions (a three cooling channel gas turbine blade). The problems that arose during the numerical computation and the methods of their solution are presented. The obtained numerical results confirm efficiently the assumptions made for the particular example.

Słowa kluczowe

EN

boundary element method; inverse problem

PL

zagadnienie odwrotne

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2006
• Tom: Vol. 27, no. 4
• Strony: 91--98
• Opis fizyczny: Wz., wykr.,Bibliogr. 3 poz.,

Twórcy

autor

Frąckowiak A.

autor

Ciałkowski M.

autor

Wolfersdorf J.

• Prof. PPozn. - mechanika ; numeryczna mechanika płynów, systemy i urządzenia energetyczne.

Bibliografia

• [1] BAUMEISTER J.: Stable Solution of Inverse Problems, Friedr. Vieweg&Sohn, Braunschweig/Wiesbaden 1987.
• [2] CIAŁKOWSKI M.: Selected methods and algoritms of solving inverse problems of heat conduction equation, Poznan Univesity of Technology Publishers (Wydawnictwo Politechniki Poznańskiej), Poznań, 1996 (in Polish).
• [3] LOUIS A.K.: Inverse und schlecht gestellte Probleme, B.G. Teubner, 1989.