Decomposition of the mean friction drag on an NACA4412 airfoil under uniform blowing/suction

@article{Fan2021DecompositionOT,
  title={Decomposition of the mean friction drag on an NACA4412 airfoil under uniform blowing/suction},
  author={Yitong Fan and Marco Atzori and Ricardo Vinuesa and Davide Gatti and Philipp Schlatter and Weipeng Li},
  journal={Journal of Fluid Mechanics},
  year={2021},
  volume={932}
}
Abstract The application of drag-control strategies on canonical wall-bounded turbulence, such as periodic channel and zero- or adverse-pressure-gradient boundary layers, raises the question on how to distinguish consistently the origin of control effects under different reference conditions. We employ the RD identity (Renard & Deck, J. Fluid Mech., vol. 790, 2016, pp. 339–367) to decompose the mean friction drag and investigate the control effects of uniform blowing and suction applied to an… 

Integral relations for the skin-friction coefficient of canonical flows

Abstract We show that the Fukagata et al.'s (Phys. Fluids, vol. 14, no. 11, 2002, pp. 73–76) identity for free-stream boundary layers simplifies to the von Kármán momentum integral equation relating

References

SHOWING 1-10 OF 94 REFERENCES

Aerodynamic Effects of Uniform Blowing and Suction on a NACA4412 Airfoil

We carried out high-fidelity large-eddy simulations to investigate the effects of uniform blowing and uniform suction on the aerodynamic efficiency of a NACA4412 airfoil at the moderate Reynolds

Decomposition of the mean skin-friction drag in compressible turbulent channel flows

The mean skin-friction drag in a wall-bounded turbulent flow can be decomposed into different physics-informed contributions based on the mean and statistical turbulence quantities across the wall

Global effect of local skin friction drag reduction in spatially developing turbulent boundary layer

A numerical investigation of two locally applied drag-reducing control schemes is carried out in the configuration of a spatially developing turbulent boundary layer (TBL). One control is designed to

Direct numerical simulation of spatially developing turbulent boundary layers with uniform blowing or suction

Direct numerical simulation (DNS) of spatially developing turbulent boundary layer with uniform blowing (UB) or uniform suction (US) is performed aiming at skin friction drag reduction. The Reynolds

Effects of uniform blowing or suction from a spanwise slot on a turbulent boundary layer flow

Effects of uniform blowing or suction from a spanwise slot on a turbulent boundary layer flow are investigated using the direct numerical simulation technique. The magnitudes of blowing or suction

Combined Blowing/Suction Flow Control on Low-Speed Airfoils

The paper focuses on the application of the blowing/suction technique to control incompressible turbulent boundary layer on 2-D low-speed airfoils. Analysis of the experimental and numerical results

Effectiveness of Micro-Blowing Technique in Adverse Pressure Gradients

Abstract : The impact of the micro-blowing technique (MBT) on the skin friction and total drag of a strut in a turbulent, strong adverse-pressure-gradient flow is assessed experimentally over a range

Effect of adverse pressure gradients on turbulent wing boundary layers

The characteristics of turbulent boundary layers (TBLs) subjected to adverse pressure gradients are analysed through well-resolved large-eddy simulations. The geometries under study are the NACA0012
...