Modeling of Drying Process in Porous Media

Abstract

Mathematical modeling of drying in porous media is a valuable tool for understanding and optimizing the drying process. During the GSMMC camp, we explored two approaches to modeling the drying process: microscopic and macroscopic. In the microscopic model, the focus is on the individual pores and their interactions. This approach considers the movement of moisture at a microscale level, accounting for factors such as pore size, shape, and connectivity. It involves complex calculations and is suitable for detailed analysis of specific porous structures. The microscopic model provides insights into the internal dynamics of drying, such as capillary effects and local moisture distribution. On the other hand, the macroscopic model takes a more simplified approach by considering the porous material as a homogenous medium. It describes the overall behavior of the drying process at a larger scale, treating the absorbent material as a continuum. The macroscopic model employs equations that represent the average properties of the material, such as moderate moisture content and temperature. This approach is computationally less intensive and provides a broader understanding of the drying process. Both the microscopic and macroscopic models have their advantages and limitations. The microscopic model offers detailed insights into the intricate mechanisms occurring at the pore level but requires extensive computational resources. The macroscopic model simplifies the drying process but cannot capture local variations and specific pore-level interactions.