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Analytic modelling of drying of porous materials

机译:多孔材料干燥的解析模型

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摘要

Recent experimental data by Pel has revealed the spatial and temporal structure of the moisture content during the drying process within building materials such as bricks. A simple model of the water motion is presented, guided by the observed behaviour, which allows for non-linear diffusion within the brick and a mass transfer coefficient to represent the moisture transfer between the external air current over the brick. An approximate analytic solution to the model is developed, giving the moisture profiles evolving with time.
机译:佩尔(Pel)最近的实验数据表明,在干燥过程中,建筑材料(如砖块)中水分的时空结构。在观察到的行为的指导下,提出了一个简单的水运动模型,该模型允许砖块内的非线性扩散以及传质系数来表示砖块上外部气流之间的水分传递。开发出对该模型的近似解析解,给出了随着时间变化的水分分布。

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