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Influence of temperature in a mass transfer simulation: application to wood
Wood Science and Technology ( IF 3.4 ) Pub Date : 2020-06-20 , DOI: 10.1007/s00226-020-01197-y
Maximin Varnier , Nicolas Sauvat , Laurent Ulmet , Cédric Montero , Frédéric Dubois , Joseph Gril

For in situ timber structure applications, heat and mass transfer are strongly dependent on temperature. This work focuses on a parametrical modeling to evaluate and quantify temperature effect at each stage. The model is classically based on a coupling between Fourier's law, which establishes the temporal and spatial distribution of temperature, and Fick's law dealing specifically with the water field distribution. Several hypotheses are proposed and discussed in this work regarding thermal coupling. In particular, it is shown how to integrate temperature into a permeability correction. An interaction between temperature and the sorption isotherm is also proposed herein. The model incorporates partial adsorption and desorption isotherms. Implementation in a finite element software allows highlighting the various couplings, in comparison with more standard calculus approaches.

中文翻译:

传质模拟中温度的影响:应用于木材

对于原位木结构应用,热量和质量传递强烈依赖于温度。这项工作侧重于参数化建模,以评估和量化每个阶段的温度影响。该模型经典地基于建立温度的时间和空间分布的傅立叶定律与专门处理水场分布的菲克定律之间的耦合。在这项工作中提出并讨论了几个关于热耦合的假设。特别是,它展示了如何将温度整合到渗透率校正中。本文还提出了温度和吸附等温线之间的相互作用。该模型包含部分吸附和解吸等温线。在有限元软件中实现可以突出显示各种耦合,
更新日期:2020-06-20
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