This thesis presents an investigation into the drying processes of biomass, specifically focusing on wood chips and sawdust, using ANSYS Fluent as a computational fluid dynamics software. Biomass drying is a critical step in various industrial applications, particularly in bioenergy production, as it increases the fuel efficiency by reducing the moisture content. The research begins with an overview of common biomass drying technologies, including rotary, conveyor, and open-air drying systems, exploring their field of application and underlying principles of operation. The core of this work centers on the application of the Fluent software to model and simulate biomass drying processes. A multiphase Eulerian model was used, combined with the Lee model for evaporation-condensation, to accurately simulate the interaction between biomass and the airflow.