The effects of material interface curvature on deflagration of a homogeneous solid energetic material (EM) is studied in a limit when the radius of curvature is much larger than the deflagration front thick- ness. Under the assumption of quasi-steady burning, a method of matched asymptotics is employed do derive first-order curvature corrections to the mass flux across the gas–solid interface as well as to the interface temperature. As an illustration, a problem of quasi-steady spherical particle deflagration is solved numerically and the simulation results are used to verify those obtained through asymptotic analysis. An algorithm for a fully-coupled unsteady solver suitable for EM deflagration simulation is presented. Numerical solution of the unsteady spherical particle deflagration is used to show that the assumption of quasi-steady deflagration is valid.
Publisher
Taylor and Francis
ISSN
1364-7830
Type of Resource
text
Language
en
Permalink
http://hdl.handle.net/2142/13948
DOI
https://doi.org/10.1080/13647830601091731
Copyright and License Information
This is an electronic version of an article published in Combustion Theory and Modelling Vol. 11, No. 4, August 2007, 615–637. Combustion Theory and Modelling is available online at: http://www.informaworld.com/
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