Drying process plays an important role in the manufacturing of many products such as ceramic, kitchenware and building materials, some of which have complex three-dimensional (3D) geometry. To deal with many restrictions found in literatures, a 3D numerical approach was used to describe the drying process of a porous Clay-like material. The problem investigated involves highly coupled equations considering heat, mass, and mechanical aspects. The model is validated through the comparison of experimental measurements with simulation result. Simulation results show that increasing the initial moisture content and reducing the initial temperature have the same privilege and without significant increase in drying time, it reduces slightly the amount of maximum stress but delays the occurrence time of maximum stress. The nonuniform heat expansion induced stresses are very small in comparison to nonuniform moisture shrinkage induced stresses and can be neglected in drying simulation. © 2017 American Institute of Chemical Engineers AIChE J, 2017

中文翻译：

---

粘土状物料干燥的更全面的3D建模

干燥过程在许多产品的制造中起着重要作用，例如陶瓷，厨具和建筑材料，其中一些具有复杂的三维（3D）几何形状。为了解决文献中发现的许多限制，使用3D数值方法描述了多孔粘土状材料的干燥过程。研究的问题涉及考虑热，质量和机械方面的高度耦合方程。通过将实验测量结果与仿真结果进行比较来验证该模型。仿真结果表明，增加初始水分含量和降低初始温度具有相同的特权，并且在干燥时间没有明显增加的情况下，它略微减少了最大应力的数量，但延迟了最大应力的出现时间。与不均​​匀的水分收缩引起的应力相比，不均匀的热膨胀引起的应力非常小，在干燥模拟中可以忽略不计。©2017美国化学工程师学会AIChE的Ĵ，2017年