Evolution of turbulent kinetic energy in a perturbed turbulent boundary layer

Thermophysics and Aeromechanics - Tập 18 - Trang 497-500 - 2012
O. M. Oyewola1,2, S. M. Adaramola3, S. K. Fasogbon4
1School of Chemical Engineering, University of New South Wales, Kensington, Australia
2Department of Mechanical Engineering, University of Ibadan, Ibadan, Nigeria
3Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, Canada
4Department of Mechanical Engineering, Obafemi Awolowo University, Ile-Ife, Nigeria

Tóm tắt

The paper considers the evolution of turbulent kinetic energy in a turbulent boundary layer perturbed by suction. The results show that the boundary layer equilibrium is altered in a non-linear manner due to suppression of the structures near the wall. The behavior, however, suggests that the wavelength of alteration of the equilibrium of the layer is unaffected by a change in Reynolds number and suction rate.

Tài liệu tham khảo

D.M. Bushnell and C.B. McGinley, Turbulence control in wall flows, Ann. Rev. Fluid Mech., 1989, Vol. 21, P. 1–21. M. Gad-el-Hak, Flow control, App. Mech. Rev., 1989, Vol. 42, P. 261–293. O. Oyewola, L. Djenidi, and R.A. Antonia, Combined influence of Reynolds and localized wall suction on a turbulent boundary layer, Exp. Fluids, 2003, Vol. 35, P. 199–206. R.A. Antonia, Y. Zhu, and M. Sokolov, Effect of concentrated wall suction on a turbulent boundary layer, Phys. Fluids, 1995, Vol. 7, P. 2465–2474.
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Thông tin xuất bản

Thermophysics and Aeromechanics

Tập 18

497-500

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