Behavior of Detonations Passing through Reflection Nozzles

概要

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Interaction between detonation and Prandtl-Meyer expansion is an interesting problem to be solved in connection with the disappearance or continuance of the fish-scale pattern. In this study, seven kinds of reflection nozzles were utilized in order to produce the Prandtl-Meyer expansion effects at various levels. Stability and behavior of a detonation propagating in a reflection nozzle attached to a parallel channel part were experimentally observed with the initial pressure as a parameter using optical measurement methods such as open-shutter and schlieren photographic techniques. It was found that in the case of a nozzle at the half-vertical angle of A = 18 degrees without the throat length, an initial pressure of at least 5. 3 kPa is necessary to sustain detonation configuration during passage through this nozzle.
一般社団法人日本機械学会の論文
1995-08-15