Numerical Investigation of a Blade Riblet Surface for Drag Reduction Applications with Large Eddy Simulation Method


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Fully developed turbulent channel flow with a blade riblet surface has been simulated numerically at Reynolds number by Large Eddy Simulations (LES). The blade riblet is shown to provide a total viscous drag reduction approximately 9% with the riblet spacing and the cross section . For the sake of investigating the interaction of the turbulent flow with riblets, the mean velocity profiles, velocity fluctuations, and instantaneous flow visualization have been analyzed. It has been found that the riblet of certain size reduces drag by damping the dynamics and weakening the cross motions in the near-wall boundary layer, revealing beneficial turbulence controlling.



Edited by:

Li Kai




N. H. Wu et al., "Numerical Investigation of a Blade Riblet Surface for Drag Reduction Applications with Large Eddy Simulation Method", Applied Mechanics and Materials, Vol. 187, pp. 315-319, 2012

Online since:

June 2012




[1] Pollard A. Near-Wall Turbulence Control. Flow Control. In: Gad-el-Hak M, Pollard A, editors.: Springer Berlin / Heidelberg; 1998. pp.431-66.

[2] Choi H, Moin P, Kim J. Direct numerical simulation of turbulent flow over riblets. Journal of Fluid Mechanics 1993; 255.


[3] Goldstein D, Handler R, Sirovich L. Modeling a no-slip flow boundary with an external force field. Journal of Computational Physics 1993; 105.


[4] Horsten BJC. A Numerical Study on Laminar and Turbulent Flow over Sharp and Blunt Sawtooth Riblets. (2005).

[5] Kramer F, Gruneberger R, Thiele F, Wassen E, Hage W, Meyer R. Wavy riblets for turbulent drag reduction. 5th Flow Control Conference, June 28, 2010 - July 1, 2010. Chicago, IL, United states: American Institute of Aeronautics and Astronautics Inc.; (2010).


[6] Bechert DW, Hoppe G, van der Hoeven JGT, Makris R. The Berlin oil channel for drag reduction research. Experiments in Fluids 1992; 12.


[7] Peet Y, Sagaut P, Charron Y. Pressure loss reduction in hydrogen pipelines by surface restructuring. International Journal of Hydrogen Energy 2009; 34: 8964-73.


[8] Menon W-W, Kim S. Application of the localized dynamic subgrid-scale model to turbulent wall-bounded flows AIAA, Aerospace Sciences Meeting & Exhibit, 35th, Reno, NV; UNITED STATES (1997).


[9] Pope SB. Turbulent Flows. Cambridge ; New York : Cambridge University Press, (2000).

[10] Ghosal S, Lund TS, Moin P, Akselvoll K. A dynamic localization model for large-eddy simulation of turbulent flows. Journal of Fluid Mechanics 1995; 286: 229-55.


[11] Kerho M. Active reduction of skin friction drag using low-speed streak control AIAA Aerospace Sciences Meeting & Exhibit, 40th, Reno, NV; UNITED STATES: 4.


[12] Chu DC, Karniadakis GE. A direct numerical simulation of laminar and turbulent flow over riblet-mounted surfaces. Journal of Fluid Mechanics 1993; 250.


[13] Bechert DW, Bruse M, Hage W, VanderHoeven JGT, Hoppe G. Experiments on drag-reducing surfaces and their optimization with an adjustable geometry. Journal of Fluid Mechanics 1997; 338: 59-87.


[14] Garcia-Mayoral R, Jimenez J. Drag reduction by riblets. Philosophical Transactions of the Royal Society a-Mathematical Physical and Engineering Sciences 2011; 369: 1412-27.


[15] Robinson SK. Coherent motions in the turbulent boundary layer. Annual Review of Fluid Mechanics 1991; 23: 601-39.