ABSTRACT
The general consideration of the micro-scale models are the heterogeneous structure and diverse transport phenomena at different length scales that facilitate micro- and macro-level modelling. This chapter discusses the additional concepts that are important in developing microscale modelling. It also discusses the numerical solution techniques that have been used for solving the micro-scale drying model. Due to wide acceptance and simplicity in the application of finite element method, the chapter presents the governing equations and their associated boundary conditions. It aims to familiarize readers with micro-scale modelling and its outcomes. The chapter also presents temperature and moisture distribution of food materials at micro-scale. Unlike temperature distribution in the macro-level domain, heterogeneous temperature distribution prevails in the micro-scale domain. Although the initial temperature of water-rich and air-filled spaces were uniform initial temperature, due to the low specific heat of air, a faster temperature rise occurred in the intercellular spaces.
