University of Illinois Urbana-Champaign

Modeling the thermal expansion boundary layer during the combustion of energetic materials

Kuznetsov, Igor R.; Stewart, D. Scott

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https://hdl.handle.net/2142/250

Description

Title
Modeling the thermal expansion boundary layer during the combustion of energetic materials
Author(s)
  • Kuznetsov, Igor R.
  • Stewart, D. Scott
Issue Date
2000-10
Keyword(s)
  • combustion
  • compressible flow
  • computational fluid dynamics
  • continuum mechanics
  • detonation and shock physics
  • multiphase flows
  • nonlinear waves
  • numerical methods
  • phase transitions
Abstract
An approach is presented for modeling the thermal expansion boundary layer in energetic materials such as solid propellants and explosives during their combustion. A thermodynamically consistent system of conservation laws is presented that describes the thermo-elastic solid with a temperature dependent thermal expansion coefficient in order to study the role of thermal expansion in heat transfer and deformation in a thin layer adjacent to the combustion zone. It is shown that the thermal expansion can produce an effect that absorbs energy near the burning surface and can significantly reduce the temperature in a small layer. The analysis given here is also relevant to the technologically important problem of laser ablation of materials, but the discussion is focused on application to propellant combustion.
Publisher
Department of Theoretical and Applied Mechanics (UIUC)
Series/Report Name or Number
TAM Reports 959
ISSN
0073-5264
Type of Resource
text
Language
en
Permalink
http://hdl.handle.net/2142/250

Owning Collections

Technical Reports - Theoretical and Applied Mechanics (TAM) PRIMARY
TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.