Kinetic model for aluminum-sensitized ram accelerator combustion

Laurent Catoire; Jean François Legendre; Marc Giraud

doi:10.2514/2.6118

Kinetic model for aluminum-sensitized ram accelerator combustion

Laurent Catoire, Jean François Legendre, Marc Giraud

Research output: Contribution to journal › Article › peer-review

Abstract

The chemical nature of the projectile in a ram accelerator device can play a role in the ignition process. We focus here on aluminum. An Al/H/C/O kinetic model is proposed to examine the effect of the vapor pressure of liquid aluminum on the H₂/O₂/CO₂ ignition chemistry. These mixtures are of interest for the superdetonative propulsion mode in a ram accelerator device. The vapor pressure of liquid aluminum, as a film or as droplets, in the 1000-1300 K temperature range and in the 30-200 bar pressure range, although very weak (mole fraction of Al in the range 10^-10-10^-8), is shown to reduce the H₂/O₂/CO₂ ignition delays in some cases by a factor two to three, depending on the conditions of temperature and pressure.

Original language	English
Pages (from-to)	196-202
Number of pages	7
Journal	Journal of Propulsion and Power
Volume	19
Issue number	2
DOIs	https://doi.org/10.2514/2.6118
Publication status	Published - 1 Jan 2003
Externally published	Yes

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title = "Kinetic model for aluminum-sensitized ram accelerator combustion",

abstract = "The chemical nature of the projectile in a ram accelerator device can play a role in the ignition process. We focus here on aluminum. An Al/H/C/O kinetic model is proposed to examine the effect of the vapor pressure of liquid aluminum on the H2/O2/CO2 ignition chemistry. These mixtures are of interest for the superdetonative propulsion mode in a ram accelerator device. The vapor pressure of liquid aluminum, as a film or as droplets, in the 1000-1300 K temperature range and in the 30-200 bar pressure range, although very weak (mole fraction of Al in the range 10-10-10-8), is shown to reduce the H2/O2/CO2 ignition delays in some cases by a factor two to three, depending on the conditions of temperature and pressure.",

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AU - Legendre, Jean François

AU - Giraud, Marc

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N2 - The chemical nature of the projectile in a ram accelerator device can play a role in the ignition process. We focus here on aluminum. An Al/H/C/O kinetic model is proposed to examine the effect of the vapor pressure of liquid aluminum on the H2/O2/CO2 ignition chemistry. These mixtures are of interest for the superdetonative propulsion mode in a ram accelerator device. The vapor pressure of liquid aluminum, as a film or as droplets, in the 1000-1300 K temperature range and in the 30-200 bar pressure range, although very weak (mole fraction of Al in the range 10-10-10-8), is shown to reduce the H2/O2/CO2 ignition delays in some cases by a factor two to three, depending on the conditions of temperature and pressure.

AB - The chemical nature of the projectile in a ram accelerator device can play a role in the ignition process. We focus here on aluminum. An Al/H/C/O kinetic model is proposed to examine the effect of the vapor pressure of liquid aluminum on the H2/O2/CO2 ignition chemistry. These mixtures are of interest for the superdetonative propulsion mode in a ram accelerator device. The vapor pressure of liquid aluminum, as a film or as droplets, in the 1000-1300 K temperature range and in the 30-200 bar pressure range, although very weak (mole fraction of Al in the range 10-10-10-8), is shown to reduce the H2/O2/CO2 ignition delays in some cases by a factor two to three, depending on the conditions of temperature and pressure.

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EP - 202

JO - Journal of Propulsion and Power

JF - Journal of Propulsion and Power

IS - 2

ER -

Kinetic model for aluminum-sensitized ram accelerator combustion

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