Drying model for porous material based on the dynamics of the evaporation front

2004/09/15 by Reza Torabi, Torabi, Reza, Mohammad Mehrafarin +1
Physics and Astronomy · #FOS: Physical sciences #Statistical Mechanics (cond-mat.stat-mech) #cond-mat.stat-mech

paper · pdf · doi:10.48550/arxiv.cond-mat/0409384

9 pages, 2 figures

arxiv created 2004/09/15 · arxiv updated 2009/12/01

Abstract

A receding-front model for drying of porous material is proposed that explains their drying-rate curves based on the dynamics of the evaporation front. The falling-rate regime is attributed to the slowing down of the front's propagation inside the medium due to the resistance offered by the disorder generated by porosity. The model is solved numerically and the resulting drying-rate curve is obtained for the falling-rate period. The curve shows a linear behavior at early times in conformance with experiment.

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