A Large Scale Mixing Model for a Quiescent Chamber Direct Injection Diesel

961040

02/01/1996

Event
International Congress & Exposition
Authors Abstract
Content
The methodology for predicting the transient mixing rate is presented for a direct injection, quiescent chamber diesel. The mixing process is modeled as a zero-dimensional, large-scale phenomena which accounts for injection rate, cylinder geometry, and engine operating condition. As a demonstration, two different injection schemes were investigated for engine speeds of 1600, 2100, and 2600 rpm. In the first case, the air-fuel ratio was fixed while the injection rate was allowed to vary, but for the second case, the injection duration was fixed and the air-fuel ratio was allowed to vary. For the former case, the resulting mixing rate was also compared with the experimentally determined fuel burning rate. These two quantities appeared to be correlated in some manner for the various engine speeds under investigation.
Meta TagsDetails
DOI
https://doi.org/10.4271/961040
Pages
9
Citation
Schihl, P., Bryzik, W., and Atreya, A., "A Large Scale Mixing Model for a Quiescent Chamber Direct Injection Diesel," SAE Technical Paper 961040, 1996, https://doi.org/10.4271/961040.
Additional Details
Publisher
Published
Feb 1, 1996
Product Code
961040
Content Type
Technical Paper
Language
English