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Stability and receptivity of idealized detonations

Posted on:2012-05-20Degree:Ph.DType:Dissertation
University:The University of ArizonaCandidate:Chiquete, CarlosFull Text:PDF
GTID:1450390011957293Subject:Applied Mathematics
Abstract/Summary:
The linear receptivity and stability of plane idealized detonation with one-step Arrhenius type reaction kinetics is explored in the case of three-dimensional perturbations to a Zel'dovich-von Neumann-Doering base flow. This is explored in both overdriven and explicitly Chapman-Jouguet detonation. Additionally, the use of a multi-domain spectral collocation method for solving the conventional stability problem is explored within the context of normal-mode detonation. An extension of the stability analysis to confined detonations in a slightly porous walled tube is also carried out. Finally, an asymptotic analysis of a detonation with two-step reaction kinetics in the limit of large activation energy and for general overdrive and reaction order is performed yielding a nonlinear evolution equation for perturbations that produce stable limit cycle solutions.
Keywords/Search Tags:Stability, Detonation, Reaction
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