1. Numerical study of nonequilibrium plasma assisted detonation initiation in detonation tube
- Author
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Wansheng Nie, Fang Wang, Xueke Che, and Siyin Zhou
- Subjects
010302 applied physics ,Physics ,Deflagration to detonation transition ,Detonation ,Plasma ,Mechanics ,Dielectric barrier discharge ,Condensed Matter Physics ,Combustion ,01 natural sciences ,Charged particle ,010305 fluids & plasmas ,law.invention ,Ignition system ,Physics::Plasma Physics ,law ,0103 physical sciences ,Combustor ,Physics::Chemical Physics ,Atomic physics - Abstract
Nonequilibrium plasma has shown great merits in ignition and combustion nowadays, which should be especially useful for hypersonic propulsion. A coaxial electrodes configuration was established to investigate the effect of alternating current (AC) dielectric barrier discharge nonequilibrium plasma on the detonation initiation process in a hydrogen-oxygen mixture. A discharge simulation-combustion simulation loosely coupled method was used to simulate plasma assisted detonation initiation. First, the dielectric barrier discharge in the hydrogen-oxygen mixture driven by an AC voltage was simulated, which takes 17 kinds of particles (including positively charged particles, negatively charged particles, and neutral particles) and 47 reactions into account. The temporal and spatial characteristics of the discharge products were obtained. Then, the discharge products were incorporated into the combustion model of a detonation combustor as the initial conditions for the later detonation initiation simulation. Re...
- Published
- 2016