> C. Ruyer-Quil
Multi-scale modeling and simulation of liquid jet atomization assisted by fast gas stream
Stanley Yue Ling (DALEMBERT)
Detailed numerical simulation is conducted to investigate the atomization of a planar liquid jet assisted by a fast gas stream. In order to accurately capture both the gas-liquid interface instability and the drop dynamics, a multi-scale multiphase flow simulation strategy is employed, in which the gas-liquid interface is resolved by the Volume-of-Fluid (VOF) method, while the small drops are represented by Lagrangian point-particle (LPP) model. The present multiphase flow model is verified by comparing with direct numerical simulation (DNS) results and experimental measurements. The numerical results show complex formation mechanisms and dynamics of the drops. The ejection angle for the drops formed at different streamwise location is observed to vary significantly.