An ignition model for quiescent fuel sprays

✍ Scribed by J.E. Peters; A.M. Mellor

• Book ID: 103039550
• Publisher: Elsevier Science
• Year: 1980
• Tongue: English
• Weight: 468 KB
• Volume: 38
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(80)90037-1

✦ Synopsis

An evaporation controlled ignition model is developed on the basis of data in the literature which suggest that two fuel properties which affect evaporation, volatility, and viscosity, also strongly influence ignition. Due to the similarities between flame stabilization and ignition, the model follows from an existing flame stabilization theory. Basically, the model employs a characteristic time approach which associates specific times with the physical processes which occur during ignition and states that the ignition limit is reached when the mixing rate of the spark kernel with its environment equals the fuel evaporation rate. A favorable comparison between the model and ignition data for quiescent fuel and air mixtures is observed.