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Title of Article

NUMERICAL INVESTIGATION OF GASEOUS DETONATION INITIATION IN TUBES WITH COMPLEX GEOMETRY OF THE WALLS


Issue
4
Date
2011

Article type
scientific article
UDC
534.222.2
Pages
1206-1208
Keywords
 


Authors
Utkin P.S.
Institut avtomatizatsii proektirovaniya RAN, Moskva

Akhmedyanov I.F.
Institut avtomatizatsii proektirovaniya RAN, Moskva

Lebedeva A.Yu.
Institut avtomatizatsii proektirovaniya RAN, Moskva


Abstract
The paper studies the initiation of gaseous detonation in profiled tubes with complex geometry of the walls by a comparatively weak shock wave. The investigation is carried out with the help of numerical experiment in a three-dimensional formulation using high performance computing. It is shown that the profiling of axisymmetric tube in the form of parabolic contraction and conical expansion as well as the usage of helical tubes can significantly decrease time and distance of shock-to-detonation transition. The mechanisms of detonation initiation in the above mentioned cases are investigated.

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