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ISSN Online: 2377-424X

International Heat Transfer Conference 12
August, 18-23, 2002, Grenoble, France

Experimental Study of Primary Break-up of Liquid Jets in Cross Airflows

Get access (open in a dialog) DOI: 10.1615/IHTC12.4470
6 pages

要約

An experimental study of the primary break-up of liquid jets in a cross-flow of gas has been carried out on a specially designed wind tunnel facility. The measurement station was made of clear acrylic resin to allow optical access and visualization. The working liquid used in the present experiment was the aero-engine lubrication oil, which was injected into the airflow, via a nozzle from the top wall of the test-section. The effects of oil viscosity, and the jet and gas cross-flow velocities on the primary break-up mechanisms of the jet were studied. Two different break-up regimes were identified; column break-up and bag break-up separated by a transition zone. The correlation proposed by Wu et al. to predict the jet transverse penetration before the break-up, as a function of the liquid/airflow momentum-flux ratio, was found to be applicable only for liquids with low viscosity.