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
Pages (from-to)18
Number of pages1
JournalInternational Symposium on Combustion Abstracts of Accepted Papers
Issue numberA
Publication statusPublished - 2000
Externally publishedYes
Event28th International Symposium on Combustion - Edinburgh, United Kingdom
Duration: Jul 30 2000Aug 4 2000

All Science Journal Classification (ASJC) codes

  • General Engineering

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