2012•Jisuan wuliRequires access

Numerical Simulation of Explosive Dust Detonation with CE/SE Method

Xiaoli Zhang

Abstract

Two-phase detonation of RDX particles suspended in air was numerically studied with CE/SE method.Behind leading shock front of detonation,explosive particles are accelerated and heated by the gas flow.Energy is released to support propagation of detonation wave.Dust detonation in a shock tube was numerically simulated.Distribution of physical quantity behind leading shock front was calculated.Parameters of detonation were obtained and they agree well with those in a reference.Dust detonation in a complex channel was numerically simulated.It shows that CE/SE method simulates gas-solid two-phase detonation successfully.

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Key concepts: Detonation, Explosive material, Mechanics, Shock wave, Deflagration to detonation transition, Materials science, Shock (circulatory), Shock front