Abstract
A model for examining ignition of a single fuel droplet passing through a propagating flame was presented, and the effect of the initial droplet diameter and the equivalence ratio of the mixture on ignition time of a droplet was investigated numerically. The results showed that each equivalence ratio had a minimum ignition time against the initial droplet diameter because of the competition between the evaporation time and the reaction time, and that each initial droplet diameter had a minimum ignition time against the equivalence ratio of the mixture because of the competition between the effect of the flame temperature and that of the oxidizer concentration. The results also showed that the burning velocity of propagating flame increased as the flame front approached the droplet surface. This increase of the burning velocity may result in a local disturbance on the planar propagating flame through flame-droplet interaction and thus suggests the occurrence of the thermal-diffusion instability in spray combustion.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
