Efficient Solution Processes for Finite Element Analysis of Transient Heat Conduction

Richard H. Gallagher, R. H. Mallett

Journal of Heat Transfer · 1971 · 33 citations · 0 references

Concepts

Abstract

Systematic procedures are presented for reducing the order of a matrix differential equation governing transient heat conduction in solids. Two principal aspects of this development are a condensation of the set of gridpoint temperature degrees of freedom using steady-state relations and the introduction of generalized (modal) temperature degrees of freedom to achieve a further reduction. These processes are illustrated in an elementary one-dimensional transient heat conduction problem.