An Experimental Investigation of Liquid Jets under the Influence of Laminar Cross Airflows


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Mercan H. , Nabati M., Bedir H., Anlas G.

ICAME 2021 Istanbul, İstanbul, Turkey, 20 - 22 October 2021, pp.1543

  • Publication Type: Conference Paper / Summary Text
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.1543

Abstract

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