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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN 印刷: 2152-5102
ISSN オンライン: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v23.i1-2.200
pages 160-165

Damping of Turbulence at the Transitional Stage of Evolution of a Patent

V. N. Il'chenko
Fluid Mechanics Institute of the Ukrainian Academy of Sciences, Kiev, Ukraine
V. I. Nikishov
Institute of Hydromechanics of National Academy of Sciences of Ukraine, 8/4, Zhelyabov St., Kyiv, 03057, Ukraine

要約

The balance of energy of turbulence for a patch undergoing the transitional stage of evolution is reduced to a Ricatti equation. Asymptotic solutions for the axisymmetrical and plane patches are obtained. It is demonstrated that the use of a turbulent flow profile in the model causes a more rapid decay of turbulence as compared with a viscous profile. The numerical results are presented.


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