Detailed numerical simulations of the multi-stage self-ignition process of n-heptane isolated droplets and their verification by comparison with microgravity experiments

S. Schnaubelt, O. Moriue, T. Coordes, C. Eigenbrod, H. J. Rath

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Detailed understanding of the basic physical and chemical processes of self-ignition phenomena for technical fuel sprays is needed for different technical combustion applications. The multi-stage self-ignition behavior of single n-heptane droplets in air was studied at 580-1000 K and 0.3-1 MPa. The chemical reaction mechanism featured a 62-step kinetic model with special consideration of the low-temperature reaction branch. Cool flame and hot flame appearance were determined from non-intrusive interferometric measurement in a well tested experimental setup. A quantitative good agreement for first and total ignition delays, as well as for cool flame temperature were achieved. Using the detailed numerical model, the multi-stage ignition behavior was examined and the ignition criteria used in interferometric measurement were confirmed. Original is an abstract.

Original languageEnglish
Number of pages1
JournalInternational Symposium on Combustion Abstracts of Accepted Papers
Issue numberA
Publication statusPublished - Jan 1 2000
Externally publishedYes
Event28th International Symposium on Combustion - Edinburgh, United Kingdom
Duration: Jul 30 2000Aug 4 2000

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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