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ISSN 打印: 1064-2285
ISSN 在线: 2162-6561

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DOI: 10.1615/HeatTransRes.v33.i1-2.160
7 pages

Influence of the Wall Temperature Regime on the Transition to Turbulence in the Boundary Layer with High Level of External Disturbances

Valerii G. Lushchik
"Energomash" Science and Production Association, M. V. Keldysh Research Center, Institute of mechanics of Lomonosov Moscow State University, Michurinsky prospect 1, 119192, Moscow, Russia
A. A. Pavel'ev
"Energomash" Science and Production Association, M. V. Keldysh Research Center, Institute of Mechanics at the Moscow State University, Moscow, Russia
A. E. Yakubenko
"Energomash" Science and Production Association, M. V. Keldysh Research Center, Institute of Mechanics at the Moscow State University, Moscow, Russia

ABSTRACT

The results of numerical investigation of the influence of the external turbulence level, surface-flow temperature ratio, and flow Mach number on transition to turbulence in a boundary layer are presented. It is shown that the critical Reynolds number decreases with increase of the above parameters. The obtained qualitative and quantitative picture of the transition agrees with the available experimental data.


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