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Numerical simulation of flame acceleration and deflagration to detonation transition in hydrogen-air mixture
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Heidari, A. and Wen, Jennifer X. (2014) Numerical simulation of flame acceleration and deflagration to detonation transition in hydrogen-air mixture. International Journal of Hydrogen Energy, 39 (36). pp. 21317-21327. doi:10.1016/j.ijhydene.2014.10.066 ISSN 0360-3199.
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Official URL: http://dx.doi.org/10.1016/j.ijhydene.2014.10.066
Abstract
A numerical approach has been developed to simulate flame acceleration and deflagration to detonation transition in hydrogen-air mixture. Fully compressible, multidimensional, transient, reactive Navier–Stokes equations are solved with a chemical reaction mechanism which is tuned to simulate different stages of flame propagation and acceleration from a laminar flame to a turbulent flame and subsequent transition from deflagration to detonation. Since the numerical approach must simulate both deflagrations and detonations correctly, it is initially tested to verify the accuracy of the predicted flame temperature and velocity as well as detonation pressure, velocity and cell size. The model is then used to simulate flame acceleration (FA) and transition from deflagration to detonation (DDT) in a 2-D rectangular channel with 0.08 m height and 2 m length which is filled with obstacles to reproduce the experimental results of Teodorczyk et al. The simulations are carried out using two different initial ignition strengths to investigate the effects and the results are evaluated against the observations and measurements of Teodorczyk et al.
Item Type: | Journal Article | ||||||||||
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Subjects: | Q Science > QC Physics Q Science > QD Chemistry T Technology > TP Chemical technology |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||||
Library of Congress Subject Headings (LCSH): | Detonation waves -- Computer simulation, Hydrogen as fuel , Hydrogen flames | ||||||||||
Journal or Publication Title: | International Journal of Hydrogen Energy | ||||||||||
Publisher: | Elsevier BV | ||||||||||
ISSN: | 0360-3199 | ||||||||||
Official Date: | 12 December 2014 | ||||||||||
Dates: |
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Volume: | 39 | ||||||||||
Number: | 36 | ||||||||||
Number of Pages: | 11 | ||||||||||
Page Range: | pp. 21317-21327 | ||||||||||
DOI: | 10.1016/j.ijhydene.2014.10.066 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access |
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