Large Eddy Simulation of a Reacting Kerosene Spray in Hot Vitiated Cross-Flow

Abstract The evaporation and combustion characteristics of a kerosene spray injected perpendicularly into cross-flow high-temperature vitiated air is investigated. This fundamental flow configuration has wider implications for the future development ultra-low emission aeronautical combustors, particularly with respect to technologies involving MILD combustion. Large eddy simulations Eulerian–Lagrangian framework are performed investigate evolution reaction zone range conditions. For closure turbulence-chemistry interactions at sub-grid scales, transported probability density function approach solved by Eulerian stochastic fields method applied. A based on use airblast atomisation assessed first compared experimental observations. effect atomiser air-to-liquid mass ratio studied in greater detail, both terms resulting gas-phase properties droplet process. Then, ambient pressure global flame behaviour examined. this part study, no atomising included simulation separate effects from interaction jet. Analysis operating pressures 1 atm, 2 bar 4 highlights strong coupling between reacting characteristics, which highly affected penetration field characterised relatively large gradients temperature. results reported work provide understanding novel low-emission demonstrate feasibility applying detailed chemistry investigation aviation fuel sprays hot cross-flow.