Deflagration-to-detonation transition in crossed-flow fast jets of propellant components

It was experimentally proven for the first time that the turbulence produced by crossed-flow supersonic jets of a fuel (natural gas) and an oxidizer (oxygen), which are injected at a pressure of 25 to 150 atm into a smooth detonation tube 74 mm in diameter, causes a fast deflagration-to-detonation t...

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Bibliographic Details
Published inDoklady. Physical chemistry (1991) Vol. 476; no. 1; pp. 153 - 156
Main Authors Frolov, S. M., Smetanyuk, V. A., Aksenov, V. S., Koval’, A. S.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2017
Springer Nature B.V
Subjects
Chemistry
Chemistry and Materials Science
Deflagration
Detonation
Fluid dynamics
Natural gas
Physical Chemistry
Turbulence
Turbulent flow
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Summary:It was experimentally proven for the first time that the turbulence produced by crossed-flow supersonic jets of a fuel (natural gas) and an oxidizer (oxygen), which are injected at a pressure of 25 to 150 atm into a smooth detonation tube 74 mm in diameter, causes a fast deflagration-to-detonation transition at distances as short as 300 mm (up to 4 tube diameters) in times of tenths of a millisecond (∼0.4 ms). The obtained results can be used for designing compact predetonators for detonation combustors of promising energy-converting devices.
ISSN:0012-5016
1608-3121
DOI:10.1134/S0012501617090019