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A CONTINUUM MODEL OF DRYING PROCESSES INVOLVING A JUMP THROUGH HYSTERESIS

 

作者: M. Ilic,   I.W. Turner,  

 

期刊: Drying Technology  （Taylor Available online 1991）
卷期: Volume 9, issue 1  

页码: 79-111

 

ISSN:0737-3937

 

年代: 1991

 

DOI:10.1080/07373939108916642

 

出版商: Taylor & Francis Group

 

关键词: mathematical modelling of drying processes;heat and mass transfer;multiphase flow in porous media;enthalpy formulation;drying rate curve;evaporation front;hygroscopic materials;drying of pastes

 

数据来源: Taylor

 

摘要:

A continuum model of equilibrium drying processes developed by Ilic and Turner [6], [19] is reformulated in such a way that the source terms are absent. The model is also extended by including a jump through the hysteresis formed by the wetting and drying curves. The jump is expressed in terms of Heaviside unit function. When the unit function is approximated by a sequence of functions, a single system of three coupled nonlinear partial differential equations results. The system is solved numerically using finite difference

 

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