Combustion modeling of composite solid propellants with finite peclet number

G. M. Knott, M Quinn Brewster

Research output: Contribution to conferencePaper

Abstract

A combustion model has been formulated to solve the burning rate eigenvalue problem for a composite solid propellant, similar to what has been done previously for homogeneous energetic solids. A two-step (high activation energy condensed phase decomposition followed by low activation energy gas phase heat release) model has been extended from one to two dimensions for non-premixed composite solids. Gas phase streamwise diffusion (the primary driving force for solid pyrolysis), has been accounted for by including finite Peclet number. The results show that the value of the Peclet number (which plays the role of non-dimensional burning rate) is constrained to a reasonably small interval by the eigenvalue expression obtained from activation energy asymptotic analysis of the condensed phase thermal decomposition zone. The present model is relevant to materials where diffusion flame and particle size effects are minimal such as nitramine composites.

Original languageEnglish (US)
StatePublished - Jan 1 1998
Event34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 1998 - Cleveland, United States
Duration: Jul 13 1998Jul 15 1998

Other

Other34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 1998
CountryUnited States
CityCleveland
Period7/13/987/15/98

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ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Control and Systems Engineering
  • Aerospace Engineering

Cite this

Knott, G. M., & Brewster, M. Q. (1998). Combustion modeling of composite solid propellants with finite peclet number. Paper presented at 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 1998, Cleveland, United States.