Study of viscosity effect on turbulent mixing development at the gas-liquid interface

Bliznetsov, M. V.; Nevmerzhitsky, N V; Sotskov, E. A.; Tochilina, L. V.; Козлов, В. І.; Lychagin, A. K.; Ustinenko, V. A.

doi:10.1063/1.2337220

AIP Conference Proceedings

2006

DOI: 10.1063/1.2337220

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Study of viscosity effect on turbulent mixing development at the gas-liquid interface

M. V. Bliznetsov¹,

N V Nevmerzhitsky²,

E. A. Sotskov³

et al.

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Study of the Reynolds Number Effect on the Process of Instability Transition Into the Turbulent Stage

Nevmerzhitskiy¹,

Sotskov²,

Sen'kovskiy³

et al. 2014

Journal of Fluids Engineering

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The results of the experimental study of the Reynolds number effect on the process of the Rayleigh-Taylor (R-T) instability transition into the turbulent stage are presented. The experimental liquid layer was accelerated by compressed gas. Solid particles were scattered on the layer free surface to specify the initial perturbations in some experiments. The process was recorded with the use of a high-speed motion picture camera. The following results were obtained in experiments: (1) Long-wave perturbation is developed at the interface at the Reynolds numbers Re < 10 4 . If such perturbation growth is limited by a hard wall, the jet directed in gas is developed. If there is no such limitation, this perturbation is resolved into the short-wave ones with time, and their growth results in gasliquid mixing. (2) Short-wave perturbations specified at the interface significantly reduce the Reynolds number Re for instability to pass into the turbulent mixing stage.

show abstract

Study of the Reynolds Number Effect on the Process of Instability Transition Into the Turbulent Stage

Nevmerzhitskiy¹,

Sotskov²,

Sen'kovskiy³

et al. 2014

Journal of Fluids Engineering

View full text Add to dashboard Cite

show abstract

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Study of viscosity effect on turbulent mixing development at the gas-liquid interface

Cited by 1 publication

References 2 publications

Study of the Reynolds Number Effect on the Process of Instability Transition Into the Turbulent Stage

Study of the Reynolds Number Effect on the Process of Instability Transition Into the Turbulent Stage

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