Hydrodynamics and Local Turbulent Mixing of Submerged, Parallel Liquid Jets: Experiments and CFD Simulations

• DOI: 10.1021/acs.iecr.9b04871
• Publication Date: 2020-01-15T13:28:13Z
• Authors: Shuxian Jiang; Jiajun Wang; Lian-Fang Feng; Marc-Olivier Coppens
• Keywords: Entrainment (biomusicology)

The hydrodynamics and local turbulent mixing of parallel multiple liquid jets, submerged in liquid, were investigated by means experiments computational fluid dynamics (CFD). A renormalization group (RNG) k-ε turbulence model was used to simulate the flow field. validated experimentally particle image velocimetry (PIV) measurements. In converging region adjacent nozzle exits, recirculation disappears, there is only ambient entrainment. Different jet arrays compared evaluate effects spatial arrangement on performance. shorter length merging suggests that more efficient triple-jet system than other systems. Compared with Reynolds number, spacing plays a significant role determining critical regions, while linear relationship between them sensitive for plane jets.