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Evolution of mixing zone under the influence of nonstationary compression wave

Published online by Cambridge University Press:  01 October 1999

S.G. ZAYTSEV ,
V.V. KRIVETS ,
S.N. TITOV  and
E.I. CHEBOTAREVA
S.G. ZAYTSEV
Affiliation:
Krzhizhanovsky Power Engineering Institute (ENIN), Leninsky Prospect 19, Moscow GSP-1, 117071 Russia
V.V. KRIVETS
Affiliation:
Krzhizhanovsky Power Engineering Institute (ENIN), Leninsky Prospect 19, Moscow GSP-1, 117071 Russia
S.N. TITOV
Affiliation:
Krzhizhanovsky Power Engineering Institute (ENIN), Leninsky Prospect 19, Moscow GSP-1, 117071 Russia
E.I. CHEBOTAREVA
Affiliation:
Krzhizhanovsky Power Engineering Institute (ENIN), Leninsky Prospect 19, Moscow GSP-1, 117071 Russia
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Abstract

In the present study we performed an experimental investigation of the Rayleigh–Taylor instability (RTI) in a mixing zone between two gases entrapped into accelerated motion by a nonstationary compression wave. Acceleration g was ∼1.5·107 cm/s2, Atwood numbers ranged from 0.04 to 0.77. A mixing zone was formed by an oxygen-hydrogen mixture and an inert gas (Ne, Ar, Kr, Xe) or SF6. The initial gas pressure was 0.5 atm. A specific feature of our experiment is compressibility of media tested and initially continuous interface between gases of different densities. The present work is a continuation of investigations on nonlinear, transition, and early turbulent stages of the RTI.

Type
Research Article
Information
Laser and Particle Beams , Volume 17 , Issue 4 , October 1999 , pp. 629 - 634
Copyright
1999 Cambridge University Press

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