ICAME 2021 Istanbul, İstanbul, Türkiye, 20 - 22 Ekim 2021, ss.1543
The break-up mechanisms of the liquid jets in
laminar cross flows are studied experimentally. A low speed wind tunnel is used
and laminar airflow is ensured by a centrifugal impeller with two screen meshes.
The 1m x 1m test section is made of acrylic glass to permit droplet
visualization. Water is injected perpendicularly into the laminar air flow by a
nozzle positioned in the top wall of the test-section. The effects of the jet
and air velocity together with the diameter of the nozzle on the primary
breakup mechanisms are investigated. The bump break-up and bag break-up regimes
are identified. Stream wise and transverse depth of the jet is also measured
before the breakup and the penetration is compared with the available
correlations in the literature. Finally statistical characteristics of the
droplet size and droplet velocity characteristics are investigated