Characterization of Local Fuel Concentrations and Internal Dynamics in D.I. Diesel Sprays 970797
The object of this paper is to present a methodology to characterize the distribution of fuel concentration into Diesel sprays and to use it to analyze the internal dynamics and atomization/coalescence mechanisms. This methodology is based on a combination of data obtained with PDA and high speed shadowgraphy on the basis of the light extinction principle. The results of fuel concentration distribution obtained at different instants of the injection show a two zones structure. From the nozzle to approximately 70% of the tip position, the evolution of radial fuel concentration distribution is similar to a gaseous steady jet. The unsteady nature of the Diesel spray appears on the front region where an accumulation of droplets occurs, mainly in the spray axis.
Citation: Desantes, J., Arrègle, J., and Pastor, J., "Characterization of Local Fuel Concentrations and Internal Dynamics in D.I. Diesel Sprays," SAE Technical Paper 970797, 1997, https://doi.org/10.4271/970797. Download Citation
Author(s):
José Ma Desantes, Jean Arrègle, José. V. Pastor
Affiliated:
Universidad Politécnica de Valencia
Pages: 13
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Fuel Spray Studies-SP-1219
Related Topics:
Logistics
Technical review
Nozzles
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