The Fusion Times of Slabs and Cylinders

Author:

Baxter D. C.1

Affiliation:

1. Mechanical Engineering Division, National Research Council of Canada, Ottawa, Ontario, Canada

Abstract

Results for the time required to melt or freeze a slab or cylinder of a pure substance initially at the fusion temperature and with convection at the surface are presented. The “enthalpy-flow temperature” method of Dusinberre and Eyres is used, and the lumped equations solved on an analog computer. Correlated results are given for the ambient temperature ranges cT∞/L up to 2, and Nusselt number greater than 1. These represent an extension of the “no-capacity” solutions of London and Seban. The “enthalpy-flow temperature” method involves use of the dependent variables H(T)=∫0+TcdTandφ(T)=∫0TkdT and so reduces the essential nonlinearity at the fusion temperature to one easily handled in an analog computer simulation.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

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