NDLI: Modelling of detonation cellular structure in aluminium suspensions

Content Provider	Springer Nature Link
Author	Briand, A. Veyssiere, B. Khasaiv, B. A.
Copyright Year	2010
Abstract	Heterogeneous detonations involving aluminium suspensions have been studied for many years for industrial safety policies, and for military and propulsion applications. Owing to their weak detonability and to the lack of available experimental results on the detonation cellular structure, numerical simulations provide a convenient way to improve the knowledge of such detonations. One major difficulty arising in numerical study of heterogeneous detonations involving suspensions of aluminium particles in oxidizing atmospheres is the modelling of aluminium combustion. Our previous two-step model provided results on the effect on the detonation cellular structure of particle diameter and characteristic chemical lengths. In this study, a hybrid model is incorporated in the numerical code EFAE, combining both kinetic and diffusion regimes in parallel. This more realistic model provides good agreement with the previous two-step model and confirms the correlations found between the detonation cell width, and particle diameter and characteristic lengths. Moreover, the linear dependence found between the detonation cell width and the induction length remains valid with the hybrid model.
Starting Page	521
Ending Page	529
Page Count	9
File Format	PDF
ISSN	09381287
Journal	Shock Waves
Volume Number	20
Issue Number	6
e-ISSN	14322153
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-11-10
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Detonation Cellular structure Two-phase mixtures Aluminium suspensions Aluminium combustion Condensed Matter Physics Acoustics Thermodynamics Engineering Fluid Dynamics Fluid- and Aerodynamics Engineering Thermodynamics, Heat and Mass Transfer
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Mechanical Engineering

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