NUMERICAL ANALYSIS OF MICROMIXING IN CONCEPTUAL COMBUSTOR

Abstract

When a jet is introduced into a crossflow, a key fluid dynamic phenomenon known as micromixing improves fluid mixing. In order to encourage hydrogen's mixing with air prior to burning in a diffusion flame, hydrogen is delivered perpendicularly into an airstream in this study. The purpose of the combustor design is to shed light on the behavior of micromixing and how it affects combustion properties. The micromixing process is examined and its impact on flow dynamics assessed using ANSYS Fluent. In order to maximize micromixing efficiency in both cold flow and combustion scenarios, the combustor geometry was specially designed. According to simulation data, there is better mixing in the combustor's center, which raises the temperature during combustion. Analysis of velocity and turbulence also shows how vortex generation and jet penetration contribute to improved micromixing. Better fuel-air mixing enhances combustion performance and stability, according to the study. Advanced cooling techniques will be investigated in future studies to control temperature distribution and avoid thermal hotspots. Additionally, optimization of injection parameters and combustor modifications will be considered to further enhance micromixing and overall combustion efficiency.