Modeling and experiments of laser-induced ignition of nitramine propellants

S. J. Ritchie, S. T. Thynell, K. K. Kuof

Research output: Contribution to conferencePaper

1 Scopus citations

Abstract

The objective of the work is to develop and experimentally verify a model for CO2 laser-induced ignition of nitramine-based propellants. The onedimensional model considers heat conduction in the condensed phase coupled to heat and mass transport with global chemical kinetics of a heterogeneous propellant in the gas-phase region. The highly nonlinear model was solved numerically. Experimentally, increases in heat flux (125 -375 W/cm2) lowered the ignition delay time but changes in pressure (200 -550 psia) had very little effect. This supports the assumption that RDX decomposition is primarily temperature controlled. These trends are correctly predicted by thc model. Predictions of ignition delay time fall within the experimental uncertainty. Sensitivities of the numerical solution to the material properties and kinetic rate constants are addrased.

Original languageEnglish (US)
DOIs
StatePublished - 1995
Event31st Joint Propulsion Conference and Exhibit, 1995 - San Diego, United States
Duration: Jul 10 1995Jul 12 1995

Other

Other31st Joint Propulsion Conference and Exhibit, 1995
CountryUnited States
CitySan Diego
Period7/10/957/12/95

All Science Journal Classification (ASJC) codes

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

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