Random-walk diffusion and drying of porous materials

M. Mehrafarin and M. Faghihi

Physica A: Statistical Mechanics and its Applications, 2001, vol. 301, issue 1, 163-168

Abstract: Based on random-walk diffusion, a microscopic model for drying is proposed to explain the characteristic features of the drying-rate curve of porous materials. The constant drying-rate period is considered as a normal diffusion process. The transition to the falling-rate regime is attributed to the fractal nature of porous materials which results in crossover to anomalous diffusion.

Keywords: Drying-rate curve; Porous material; Fractal; Anomalous diffusion (search for similar items in EconPapers)
Date: 2001
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:301:y:2001:i:1:p:163-168

DOI: 10.1016/S0378-4371(01)00393-4

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