Numerical simulation of detonation failure and re-initiation in bifurcated tubes

Heidari, Ali and Wen, Jennifer (2015) Numerical simulation of detonation failure and re-initiation in bifurcated tubes. In: The 6th International Conference on Hydrogen Safety (ICHS 2015); 19-21 Oct, 2015, Yokohama, Japan.

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Abstract

A numerical approach is developed to simulate detonation propagation, attenuation, failure and re-initiation in hydrogen-air mixture. The aim is to study the condition under which detonations may fail or re-initiate in bifurcated tubes which is important for risk assessment in industrial accidents. A code is developed to solve Compressible, multidimensional, transient, reactive Navier–Stokes equations. An Implicit Large Eddy Simulation approach is used to model the turbulence. The code is developed and tested to ensure both deflagrations (when detonation fails) and detonations are simulated correctly. The code can correctly predict the flame properties as well as detonation dynamic parameters. The detonation propagation predictions in bifurcated tubes are validated against the experimental work of Wang et al. [1, 2] and found to be in good agreement with experimental observations.

Item Type: Conference or Workshop Item (Paper)
Event Title: The 6th International Conference on Hydrogen Safety (ICHS 2015)
Organising Body: International Association for Hydrogen Safety (HySafe)
Additional Information: Presentation ID170
Research Area: Mechanical, aeronautical and manufacturing engineering
Faculty, School or Research Centre: Faculty of Science, Engineering and Computing > School of Mechanical and Automotive Engineering
Depositing User: Ali Heidari
Date Deposited: 02 Nov 2015 17:00
Last Modified: 02 Nov 2015 17:00
URI: http://eprints.kingston.ac.uk/id/eprint/31813

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