Solving the Melting Problem Using the Electric Analogy to Heat Conduction

The one-dimensional, heat-conduction equation with melting at one boundary is transformed to a form suitable for simulation on an analog computer. The transformed equation is identical with the heat-conduction equation with internal heat generation and a nonmelting boundary. This allows simulation of the melting process continuously with time rather than stepwise, and the number of “cells” in the heat-conduction-circuit analog remains constant throughout the solution.