Please use this identifier to cite or link to this item: https://doi.org/10.1007/s00193-010-0252-4
Title: Rapid detonation initiation by sparks in a short duct: A numerical study
Authors: Hu, Z.M. 
Dou, H.S. 
Khoo, B.C. 
Keywords: Detonation
Numerical
Pre-compressed fresh mixture
Rapid onset
Spark
Issue Date: 2010
Source: Hu, Z.M., Dou, H.S., Khoo, B.C. (2010). Rapid detonation initiation by sparks in a short duct: A numerical study. Shock Waves 20 (3) : 241-249. ScholarBank@NUS Repository. https://doi.org/10.1007/s00193-010-0252-4
Abstract: Rapid onset of detonation can efficiently increase the working frequency of a pulse detonation engine (PDE). In the present study, computations of detonation initiation in a duct are conducted to investigate the mechanisms of detonation initiation. The governing equations are the Euler equations and the chemical kinetic model consists of 19 elementary reactions and nine species. Different techniques of initiation have been studied for the purpose of accelerating detonation onset with a relatively weak ignition energy. It is found that detonation ignition induced by means of multiple sparks is applicable to auto-ignition for a PDE. The interaction among shock waves, flame fronts and the strip of pre-compressed fresh (unburned) mixture plays an important role in rapid onset of detonation. © 2010 Springer-Verlag.
Source Title: Shock Waves
URI: http://scholarbank.nus.edu.sg/handle/10635/61196
ISSN: 09381287
DOI: 10.1007/s00193-010-0252-4
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