LDV Characterization of Air Entrainment in Transient Diesel Sprays

Paper #:
  • 910178

Published:
  • 1991-02-01
Citation:
Cossali, G., Brunello, G., and Coghe, A., "LDV Characterization of Air Entrainment in Transient Diesel Sprays," SAE Technical Paper 910178, 1991, https://doi.org/10.4271/910178.
Pages:
15
Abstract:
The air entrainment in a transient non-evaporating diesel spray was studied using laser Doppler velocimetry, to provide information on the mixing properties in the near-field region extending to 160 nozzle diameters (40 mm). The spray was injected into confined quiescent air at ambient pressure and temperature. The air velocity component normal to a cylindrical surface surrounding the spray was measured during the entire injection period, allowing the instantaneous air mass flow rate and the entrainment rates to be evaluated as a function of time. Two injection conditions were examined and their influence on the entrainment quantified. In the near field zone investigated, the air entrainment in transient liquid jets appears to be lower than that in steady gaseous jets, but larger than that in steady liquid jets.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Training / Education
2009-12-15