Flame acceleration in channels with obstacles in the deflagration-to-detonation transition
نویسندگان
چکیده
منابع مشابه
Flame Acceleration and Transition from Deflagration to Detonation in Hydrogen Explosions
Computational fluid dynamics based solvers have been developed for explosion modeling in hazards analysis. These include a numerical approach to simulate flame acceleration and deflagration to detonation transition in hydrogen-air mixture and two detonation solvers. The former solves fully compressible, multidimensional, transient, reactive Navier–Stokes equations with a chemical reaction mecha...
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Flame acceleration and deflagration-to-detonation transitions (DDT) in large obstructed channels filled with a stoichiometric methane–air mixture are simulated using a single-step reaction mechanism. The reaction parameters are calibrated using known velocities and length scales of laminar flames and detonations. Calculations of the flame dynamics and DDT in channels with obstacles are compared...
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The study on deflagration-to-detonation transition (DDT) is very important because this mechanism has relevance to safety issues in industries, where combustible premixed gases are in general use. However, the quantitative prediction of DDT is one of the major unsolved problems in combustion and detonation theory to date. In this paper, the DDT process is studied theoretically and the critical ...
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ژورنال
عنوان ژورنال: Combustion and Flame
سال: 2010
ISSN: 0010-2180
DOI: 10.1016/j.combustflame.2009.12.021