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Numerical study of two-dimensional gaseous detonation in a channel
In this paper, the authors use an adaptive second-order Godunov scheme with front tracking algorithm to carry out two-dimensional numerical simulation in a channel For this simulation, we had used LSDYNA-code. Also the chemical kinetics, a single-step Arrhenius law is utilized. Initiation of detonation performs with a one dimensional planar blast wave as an initial condition. The one dimensional detonation is perturbed by placing a disturbance in the initial density. The structure of the front appears as detonation propagates in the channel. The front structure, that includes triple point, transverse wave, incident shock, and Mach stem, is investigated in this study. Cellular structure of detonation that is created by tracking of the triple point, is observed. In long time propagation, only one cell across the channel, with a cell size 10 units length, is formed. The convex curvature of the first half of a cell, as well as the concave curvature in the second half, is also observed in the present simulation.
Numerical study of two-dimensional gaseous detonation in a channel
In this paper, the authors use an adaptive second-order Godunov scheme with front tracking algorithm to carry out two-dimensional numerical simulation in a channel For this simulation, we had used LSDYNA-code. Also the chemical kinetics, a single-step Arrhenius law is utilized. Initiation of detonation performs with a one dimensional planar blast wave as an initial condition. The one dimensional detonation is perturbed by placing a disturbance in the initial density. The structure of the front appears as detonation propagates in the channel. The front structure, that includes triple point, transverse wave, incident shock, and Mach stem, is investigated in this study. Cellular structure of detonation that is created by tracking of the triple point, is observed. In long time propagation, only one cell across the channel, with a cell size 10 units length, is formed. The convex curvature of the first half of a cell, as well as the concave curvature in the second half, is also observed in the present simulation.
Numerical study of two-dimensional gaseous detonation in a channel
Eine numerische Untersuchung einer zweidimensionalen Gasdetonation in einem Kanal
Mousavi, Seyed Jamleddin (author)
2008
15 Seiten, 15 Bilder, 16 Quellen
Conference paper
English
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