Simulation of changes in the density of an apple slab during drying

被引:15
作者
Bialobrzewski, Ireneusz [1 ]
机构
[1] Univ Warmia & Mazury Olsztyn, Dept Agri Food Proc Engn, PL-10718 Olsztyn, Poland
关键词
drying; apple; density; shrinkage; heat and mass transfer; ALE method;
D O I
10.1016/j.icheatmasstransfer.2006.02.017
中图分类号
O414.1 [热力学];
学科分类号
摘要
The goal of the study was to determine the influence of a model of drying shrinkage on the density distribution during apple slab drying on the basis of simulation tests. The Arbitrary Lagrange-Eulerian (ALE) method was used to enter a problem with moving boundaries. It was found that a model of drying shrinkage had a significant effect on simulated local density of the material. The study was performed using two shrinkage models described by the Poisson's equation. Model A assumed a linear shrinkage velocity profile in the apple slab, and model B assumed a strongly nonlinear shrinkage velocity profile. (c) 2006 Elsevier Ltd. All rights reserved..
引用
收藏
页码:880 / 888
页数:9
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