Finite-element analysis of unsteady temperature fields in parts of gas turbine engines
Scientific-Technical Section
Received:
- 16 Downloads
Abstract
A method is proposed for the numerical solution of a problem of unsteady heat conduction which arises in the analysis of the thermal strength of power-generating equipment. The method employs finite-element techniques. It is of secondorder accuracy and is absolutely stable. The method is compared with the traditional Euler, Galerkin, and Crank-Nicolson methods. It is shown that the new method is more advantageous for solving unsteady heat-conduction problems in which the boundary conditions change rapidly with time. Examples are presented to illustrate the high degree of accuracy and reliability of the method.
Keywords
Boundary Condition Heat Conduction Temperature Field Thermal Strength Unsteady Heat Conduction
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Preview
Unable to display preview. Download preview PDF.
Literature Cited
- 1.J. Hall and J. Watt (eds.), Modern Numerical Methods of Solving Ordinary Differential Equations [Russian translation], Mir, Moscow (1979).Google Scholar
- 2.N. N. Shabrov, Finite Elements Method in the Design of Parts of Heat Engines [in Russian], Mashinostroenie, Leningrad (1983).Google Scholar
- 3.Yu. V. Rakitskii, S. M. Ustinov, and I. G. Chernorutskii, Numerical Methods of Solving Rigid Systems [in Russian], Nauka, Moscow (1979).Google Scholar
- 4.K. Decker and J. Vernier, Stability of Runge-Kutta Methods for Rigid Nonlinear Differential Equations [Russian translation], Mir, Moscow (1988).Google Scholar
- 5.A. George and J. Lew, Numerical Solution of Large Open Systems of Equations [Russian translation], Mir, Moscow (1984).Google Scholar
Copyright information
© Plenum Publishing Corporation 1990