Theory of ignition of solid propellants.

Price, Ed; Bradley, H. H.; Dehority, G. L.; Ibiricu, M. M.

doi:10.2514/3.3645

Cited by 100 publications

(8 citation statements)

References 19 publications

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“…Combustion phenomena of propellant are complex and involve several processes, such as decomposition, oxidation, phase conversion, species diffusion, etc. In this context, several research works have been published over the past decades to clearly understand the combustion of propellants [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Laser Ignition of a Low Vulnerability Propellant Based on Nitrocellulose: Effects of Ar and N₂ Surrounding Atmospheres

Courty

Lagrange

Gillard

et al. 2018

Propellants Explo Pyrotec

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Ignition and combustion characteristics of a low‐vulnerability propellant mainly composed of nitrocellulose are studied experimentally. Ignition is obtained using a 10 W laser diode. Experiments are performed in a cylindrical closed‐volume reactor for different initial pressures and initial propellant masses under nitrogen and argon surrounding atmospheres. Ignition delays, maximal overpressures and propagation rates are obtained for different initial pressures and laser powers. Ignition probabilities for different laser powers and gaseous atmospheres are also investigated using the modified Langlie method. Argon is found to be a combustion enhancer for this kind of propellant, compared to nitrogen. Laser power plays a significant role on ignition probabilities and ignition delays, but not on propagation rates. As expected, ignition delay is highly dependent on initial pressure.

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Section: Introductionmentioning

confidence: 99%

“…Price et al [1] made a very complete review of all works performed in this field up to 1966. Ignition of solid materials is itself an important research topic, this is why Kulkarni et al [2] and Hermance [3] listed all works related to solid ignition, both experimental and numerical works.…”

Section: Introductionmentioning

confidence: 99%

Laser Ignition of a Low Vulnerability Propellant Based on Nitrocellulose: Effects of Ar and N₂ Surrounding Atmospheres

Courty

Lagrange

Gillard

et al. 2018

Propellants Explo Pyrotec

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“…Owing to this balance, the pressure inside a rocket chamber is stable or changes slowly, indicating the correct design and performance of the entire propulsion system. Any mechanical defects in the propellant charge or physical or chemical instabilities of the propellant can cause unstable combustion, which usually results in explosion of the rocket motor [1][2][3][4][5]. An unstable combustion stage also occurs at the moment of ignition of the propelling charge by the igniter.…”

Section: Introductionmentioning

confidence: 99%

Calculation of the Thermochemical Parameters of High-Temperature Pyrolants

Zygmunt¹,

Papliński²

2019

Cent. Eur. J. Energ. Mater.

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The thermochemical properties of high-temperature pyrolants were studied. Two reactive oxidizers, potassium nitrate (KNO3) and potassium perchlorate (KClO4), and two highly energetic fuels, boron (B) and zirconium (Zr), were considered. The combustion temperatures and thermochemical parameters of B/ KNO3, Zr/KNO3, B/KClO4, and Zr/KClO4 pyrotechnic mixtures were investigated via thermochemical calculations using a modified dedicated calculation program package that enables estimation of the presence and concentrations of chemical compounds in condensed (solid or liquid) phases in the combustion products. The relevancy between heat generation and the quantity of gaseous and condensed products was calculated. In addition, changes in the thermochemical parameters of the pyrotechnic mixtures on increasing the combustion pressure from 0.4 to 4.0 MPa were examined. The use of zirconium led to remarkably higher combustion product temperatures compared with other metallic fuels.

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“…Early work was conducted by Price et al. in 1966 1, Kulkarni et al. in 1982 2, Hermance in 1984 3, Vilyunov and Zarko in 1989 4, and Strakouskiy et al.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of Laser‐Induced Ignition of RDX Using Detailed Chemical Kinetics

Tian

Zhang

et al. 2014

Propellants Explo Pyrotec

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A laser‐induced ignition model of RDX is developed, in which a detailed chemical kinetics scheme, containing 45 species and 231 reactions, is employed to describe the reaction in the gas phase. The model is spatially one‐dimensional and includes the transient development of two regions: the condensed phase and the gas phase. The condensed phase is composed of solid RDX, liquid RDX, and some decomposition products. The main physicochemical processes include melting, decomposation, vaporization, and radiation absorption. The gas phase is composed of RDX vapor and reaction products and the main processes include convection, diffusion, heat conduction, chemical reaction, and radiation absorption. With interfacial boundary conditions, the governing parameters for the condensed phase are conservation equations of energy and species concentration, whereas those for the gas phase are the conservation equations of mass, momentum, energy, and species concentration. A finite difference program using FORTRAN is compiled and numerical simulation is carried out. The ignition process of RDX is discussed from the distribution and evolution of temperature and species concentration. The model can provide a reasonable prediction of the phenomenon that the flame moves towards the surface immediately after ignition, and then departed from the surface.

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Theory of ignition of solid propellants.

Cited by 100 publications

References 19 publications

Laser Ignition of a Low Vulnerability Propellant Based on Nitrocellulose: Effects of Ar and N₂ Surrounding Atmospheres

Laser Ignition of a Low Vulnerability Propellant Based on Nitrocellulose: Effects of Ar and N₂ Surrounding Atmospheres

Calculation of the Thermochemical Parameters of High-Temperature Pyrolants

Modeling and Simulation of Laser‐Induced Ignition of RDX Using Detailed Chemical Kinetics

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Theory of ignition of solid propellants.

Cited by 100 publications

References 19 publications

Laser Ignition of a Low Vulnerability Propellant Based on Nitrocellulose: Effects of Ar and N2 Surrounding Atmospheres

Laser Ignition of a Low Vulnerability Propellant Based on Nitrocellulose: Effects of Ar and N2 Surrounding Atmospheres

Calculation of the Thermochemical Parameters of High-Temperature Pyrolants

Modeling and Simulation of Laser‐Induced Ignition of RDX Using Detailed Chemical Kinetics

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Product

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Laser Ignition of a Low Vulnerability Propellant Based on Nitrocellulose: Effects of Ar and N₂ Surrounding Atmospheres

Laser Ignition of a Low Vulnerability Propellant Based on Nitrocellulose: Effects of Ar and N₂ Surrounding Atmospheres