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国际能源材料和化学驱动期刊
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN 打印: 2150-766X
ISSN 在线: 2150-7678

国际能源材料和化学驱动期刊

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v4.i1-6.500
pages 493-514

A SURVEY OF PRESSURE-DRIVEN BURNING OF ENERGETIC SOLIDS WITH ARRHENIUS SURFACE PYROLYSIS

M. Verri
Politecnico di Milano, Facoltà di Ingegneria, 20133 Milan, MI, Italy
Fabio Cozzi
Dipartimento di Energetica Politecnico di Milano Via La Masa 34 Milan, Italy
A. Jalongo
Politecnico di Milano, Facoltà di Ingegneria, 20133 Milan, MI, Italy
Luigi Pietro Maria Colombo
SPLab, Department of Aerospace Engineering, Politecnico di Milano, Italy

ABSTRACT

A survey of pressure-driven burning of solid energetic materials, with chemically inert condensed phase, is presented. External radiation, if any, and initial temperature are constant parameters. Intrinsic stability of this burning configuration is discussed by a host of analytical techniques, implementing the Flame Modeling method within an appropriate AQSHOD (Arrhenius surface pyrolysis, Quasi-Steady gas phase, Homogeneous condensed phase, One-Dimensional sample) framework. In particular, the effects of an explicit pressure dependence of the concentrated surface pyrolysis are assessed. The classical results by Denison-Baum and Zeldovich-Novozhilov of the corresponding linear adiabatic problem are fully recovered as special cases. By combining an exact analysis with an approximate nonlinear integral method, a possible extension of the steady working regime beyond the classical linear stability boundaries is revealed. In this regime, the common time-invariant steady burning is replaced by self-sustained oscillatory steady burning. This time-dependent steady regime is observed up to the proper deflagration limit for a number of operating parameters. Therefore, in general, for energetic solid materials the stability of steady burning is extended from the linear stability boundaries (of the time-invariant solution) to the deflagration boundaries (of the self-sustained oscillatory solution). For nonlinear transient burning, dynamic extinction boundaries are revealed as well. However, while stability boundaries are exactly defined, deflagration and dynamic extinction boundaries are only approximately determined.


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