Numerical analysis of flow dynamics in Hybrid Rocket Motors: the influence of thermodynamic variables on the blowing phenomenon

This thesis presents a comprehensive numerical investigation of the combustion physics in hybrid rocket engines. Hybrid rockets, which utilize a combination of solid fuel and liquid or gaseous oxidizers, offer significant advantages in terms of safety, cost, and performance over traditional propulsion systems. The study aims to enhance the understanding of the complex combustion processes within these engines through detailed computational modeling and simulation. The research employs advanced numerical techniques to simulate the fluid dynamics, heat transfer, and chemical reactions occurring in the combustion chamber of a hybrid rocket. Various turbulence models and combustion mechanisms are evaluated to capture the intricate interactions between the fuel and oxidizer. The simulations are validated against experimental data to ensure accuracy and reliability.