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JOURNALS // Prikladnaya Mekhanika i Tekhnicheskaya Fizika // Archive

Prikl. Mekh. Tekh. Fiz., 2009 Volume 50, Issue 5, Pages 14–19 (Mi pmtf1787)

This article is cited in 3 papers

Statistical modeling of the turbulent transition in the boundary layer

V. A. Zharov, H. Htun, Yu. I. Khlopkov

Moscow Institute of Physics and Technology (State University), Zhukovskii, Moscow Region, 140180, Russia

Abstract: A method of statistical modeling the flow in the boundary-layer transition region is proposed on the basis of experimental data on kinematics and dynamics of turbulent spots (Emmons spots) on a flat plate in an incompressible fluid. This method allows one to determine the intermittency with allowance for overlapping of the spots, the forces on the plate surface, and the flow field in the vicinity of the transition region if the field of the streamwise component of the mean velocity in the developed turbulent boundary layer is known as a function of the Reynolds number. In contrast to multi-parameter models of the transition, this approach makes it possible to avoid the use of physically meaningless parameter values.

Keywords: boundary layer, laminar-turbulent transition, statistical modeling.

UDC: 533.6: 532.5

Received: 27.12.2007
Accepted: 26.09.2008


 English version:
Journal of Applied Mechanics and Technical Physics, 2009, 50:5, 742–746

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