Non-Reactive Diesel Spray Computations Supported by PDA Measurements

970049

02/24/1997

Event
International Congress & Exposition
Authors Abstract
Content
The non-reactive diesel spray is studied in a constant volume combustion chamber. Droplet sizes and velocities are measured using Particle Doppler Analyzer instrumentation. The effects of aerodynamic drag and vaporization on the droplets size are emphasized. An increase of the mean diameters is observed downstream of the break-up region.
The well known KIVA-II code is used to achieve spray computations. The break-up model is disabled and the spray is assumed to be already atomized at the nozzle exit. Size distribution and velocities of the injected droplets are deduced from downstream experimental data.
A good agreement is obtained between numerical and experimental results. Size distributions at various locations and temperature conditions are correctly predicted. A diesel spray can be thus modeled in a satisfactory way, when we alleviate the complex processes of break-up, but with appropriate initial droplets conditions.
Meta TagsDetails
DOI
https://doi.org/10.4271/970049
Pages
16
Citation
Levy, N., Amara, S., Champoussin, J., and Guerrassi, N., "Non-Reactive Diesel Spray Computations Supported by PDA Measurements," SAE Technical Paper 970049, 1997, https://doi.org/10.4271/970049.
Additional Details
Publisher
Published
Feb 24, 1997
Product Code
970049
Content Type
Technical Paper
Language
English