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Heat Transfer Research
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ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v31.i1-2.10
pages 1-4

Heat Transfer from a Vertical Isothermal Surface in the Mode of Laminar-Turbulent Transition in a Free-Convection Boundary Layer

Vladimir S. Berdnikov
Kutateladze Institute of Thermophysics SB RAS
V. I. Semyonov
Institute of Thermophysics, Novosibirsk, Russia

RESUMO

The evolution of a free-convection boundary layer at a heated vertical wall was studied experimentally. Studies were carried out on two models with close linear and equal relative dimensions HIL = 11.5 and under conditions of independent development of boundary layers on working surfaces. One of the models had two excellent heat-conducting boundaries. One of the boundaries of the second model was transparent. The similarity of laminar-turbulent transition processes in these models was shown. The use of a transparent boundary allowed a comparison of the evolution of three-dimensional secondary flows during laminar-turbulent transitions.


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