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Wind-tunnel simulation of thick turbulent boundary layer

Wind-tunnel simulation of thick turbulent boundary layer Abstract An experimental study aimed at revealing the possibility of simulation, in a subsonic wind tunnel, of enhanced Reynolds numbers Re** via modeling a thick flat-plate boundary layer possessing the properties of a Clauser-equilibrium shear flow is reported. We show that turbulators prepared in the form of variable-height cylinders of height h and diameter d = 3 mm and installed in two rows along the normal to the streamlined wall offer rather an efficient means for modification of turbulent boundary layer in solving the problem. In the majority of cases, mean and fluctuating characteristics of the boundary layer exhibit values typical of naturally developing turbulent boundary layers at a distance of 530 cylinder diameters. The profiles of mean velocity with artificially enhanced boundary-layer thickness can be well approximated, in the law-of-the-wall variables, with the well-known distribution of velocities for canonical boundary layer. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

Wind-tunnel simulation of thick turbulent boundary layer

Kornilov, V. I.; Boiko, A. V.
Thermophysics and Aeromechanics , Volume 19 (2): 12 – Jun 1, 2012
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Publisher
Springer Journals
Copyright
2012 Pleiades Publishing, Ltd.
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/S0869864312020084
Publisher site
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Abstract

Abstract An experimental study aimed at revealing the possibility of simulation, in a subsonic wind tunnel, of enhanced Reynolds numbers Re** via modeling a thick flat-plate boundary layer possessing the properties of a Clauser-equilibrium shear flow is reported. We show that turbulators prepared in the form of variable-height cylinders of height h and diameter d = 3 mm and installed in two rows along the normal to the streamlined wall offer rather an efficient means for modification of turbulent boundary layer in solving the problem. In the majority of cases, mean and fluctuating characteristics of the boundary layer exhibit values typical of naturally developing turbulent boundary layers at a distance of 530 cylinder diameters. The profiles of mean velocity with artificially enhanced boundary-layer thickness can be well approximated, in the law-of-the-wall variables, with the well-known distribution of velocities for canonical boundary layer.

Journal

Thermophysics and Aeromechanics – Springer Journals

Published: Jun 1, 2012

References

  • Artificial thickening of high subsonic Mach number boundary layers
    L.J. Otten, J.T. Kuren
  • Effect of roughness inhomogeneities on the development of the urban boundary layer
    M. Schultz, M. Schatzmann, B. Leitl
  • Wind-tunnel simulation of atmospheric boundary layer flows
    P.H.A. Barbosa, M. Cataldi, A.P.S. Freire
  • W.V. Burton, Wind-tunnel simulation of an atmospheric boundary layer, Thesis in Mech. Engng., Texas Tech. University, 2001.
    W.V. Burton, Wind-tunnel simulation of an atmospheric boundary layer, Thesis in Mech. Engng., Texas Tech. University,
  • A.A. Kuraev and S.D. Salenko, Wind-tunnel simulation of velocity distribution in ground boundary layer, Izv. SO AN SSSR, 1985, Iss. 3, No. 16, P. 110–114.
    A.A. Kuraev and S.D. Salenko, Wind-tunnel simulation of velocity distribution in ground boundary layer, Izv. SO AN SSSR,
  • S.V. Guvernyuk and V.G. Gagarin, Computer modeling of aerodynamic actions on enclosure elements of high-rise buildings, AVOK, 2006, No. 8, P. 18–24.
    S.V. Guvernyuk and V.G. Gagarin, Computer modeling of aerodynamic actions on enclosure elements of high-rise buildings, AVOK,
  • Wind-tunnel simulation of the atmospheric boundary layer: A report on Euromech 50
    J.C.R. Hunt, H. Fernholz
  • J.E. Sargison, G.J. Walker, V. Bond, and G. Chevalier, Experimental review of devices to artificially thicken wind tunnel boundary layers, 15th Australasian Fluid Mech. Conf., the University of Sydney, Sydney, Australia, 13–17 December, 2004.
    J.E. Sargison, G.J. Walker, V. Bond, and G. Chevalier, Experimental review of devices to artificially thicken wind tunnel boundary layers,
  • Aktuelle probleme der Baumwerksaerodynamik // Stroemungsmechanik und Stroemungmaschinen
    W. Frank, H. Mauch
  • Generation of velocity profiles using screens of non-uniform solidity
    M. Sajben, J.C. Krouxil, G.H. Hoffman, A.V. Sedrick
  • Artificial thickening of wind-tunnel boundary layers via an array of cross-flow jets
    J.L. Roberts, G.J. Walker
  • Turbulent shear flows behind two-dimensional obstacles placed on plane boundary
    S. Okamoto
  • Artificial generation of thick turbulent boundary layers
    M. Arie, M. Kiya, Y. Suzuki, I. Sakata
  • Interaction of a surface-mounted hot body with a turbulent boundary-layer
    J.L. Carvalho, A.R.J. Borges
  • Hot-wire anemometer measurement of local skin friction coefficient
    A.V. Boiko, V.I. Kornilov
  • Analysis of Turbulent Flows
    T. Cebeci
  • Proc. Stanford Conf. AFOSR-IFP
    Computation of turbulent boundary layer, D.E. Coles and E.A. Hirst
  • V.I. Kornilov and D.K. Mekler, Relaxational properties of a turbulent shear flow across a cylinder in the presence of a plate, J. Appl. Mech. Tech. Phys., 1990, No. 6, P. 854–859.
    V.I. Kornilov and D.K. Mekler, Relaxational properties of a turbulent shear flow across a cylinder in the presence of a plate, J. Appl. Mech. Tech. Phys.,
  • J.F. Nash, Turbulent boundary layer behavior and the auxiliary equation, NPL Aeron. Rep., 1965, No. 1137 (see also AGARDograph 97, 1965, Pt. 1, P. 245–249).
    J.F. Nash, Turbulent boundary layer behavior and the auxiliary equation, NPL Aeron. Rep.,
  • The incompressible zero-pressure-gradient turbulent boundary layer: an assessment of the data
    H.H. Fernholz, P.J. Finley
  • Direct simulation of a turbulent boundary layer up to R= 1410
    P.R. Spalart