ABSTRACT
The multiscale modelling approach is well established in many branches of science and engineering; however, it is in its preliminary stages in the drying arena. A multiscale model is a hierarchy of sub-models that describe the material properties and physical phenomena at different scales in an interconnected way. These models are bridged in upscaling and downscaling approach according to the requirements discussed in this chapter. Despite the great importance of structure–function relationship, there are very few studies on the relationship between effective moisture diffusivity and change of structure during drying of food materials. One of the main hurdles in connection with the establishment of this relationship is the in situ determination of porosity. The chapter points out the modelling/calculation methods at different scales. Researchers and scientists from different fields can incorporate their understanding and attempt to establish a bridging relationship between artificial intelligence and multiscale modelling to overcome the current challenge in drying models.
