Experimental Study of Spray Pattern, Tip Penetration and Velocity Profiles of a Gasoline Direct Injection Injector Using High Speed Image Recording and Particle Image Velocimetry

Paper #:
  • 2013-36-0553

Published:
  • 2013-10-07
DOI:
  • 10.4271/2013-36-0553
Citation:
Guzzo, M., Barros, J., Huebner, R., Valle, R. et al., "Experimental Study of Spray Pattern, Tip Penetration and Velocity Profiles of a Gasoline Direct Injection Injector Using High Speed Image Recording and Particle Image Velocimetry," SAE Technical Paper 2013-36-0553, 2013, doi:10.4271/2013-36-0553.
Pages:
11
Abstract:
This work shows procedures for analyzing sprays produced by a direct injection injector. The parameters studied were tip penetration, spray pattern, cone angles and velocity profiles. Two different experimental procedures were applied. The first one to get knowledge of the initial stage of injection consisted in recording images in 4000 Hz. With the data obtained, the penetrations and penetration rates were evaluated. The second experimental procedure consisted of using the Particle Image Velocimetry technique to get images and velocity data for getting knowledge of spray pattern, external and internal cone angle and velocity profiles of the spray fully developed. Gasoline and ethanol were the two fluids tested on the experiments. The results showed larger cone angles for gasoline, linear decreasing behavior for velocities on the linear velocity profiles and a transient stage for the magnitude of the velocities in the initial stage of injection.
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