Propagation analysis for thermal modeling

Propagation analysis was originally developed as a tool for the analysis of the transmission line matrix (TLM) numerical technique and its relationship to other numerical methods for heat-flow. It provides a useful alternative to the conventional frequency-domain methods for analyzing parabolic differential equations. This paper outlines the details of the technique and demonstrates the manner in which it provides information about attenuation and phase in what is essentially lossy wave propagation.