Imperial College London
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ProfessorSylvainLaizet

Faculty of Engineering, Department of Aeronautics

Professor in Computational Fluid Mechanics
 
 
 
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Contact

 

+44 (0)20 7594 5045s.laizet Website

 
 
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Location

 

339City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Mahfoze:2017:10.1016/j.ijheatfluidflow.2017.05.013,
author = {Mahfoze, O and Laizet, S},
doi = {10.1016/j.ijheatfluidflow.2017.05.013},
journal = {International Journal of Heat and Fluid Flow},
pages = {83--94},
title = {Skin-friction drag reduction in a channel flow with streamwise-aligned plasma actuators},
url = {http://dx.doi.org/10.1016/j.ijheatfluidflow.2017.05.013},
volume = {66},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Direct Numerical Simulations in a turbulent channel flow at a moderate Reynolds number are performed in order to investigate the potential of Dielectric Barrier Discharge (DBD) plasma actuators for the reduction of the skin-friction drag. The idea is to use a sparse array of streamwise-aligned plasma actuators to produce near-wall spanwise-orientated jets in order to destroy the events which transport high-speed fluid towards the wall. It is shown that it is possible to reduce the drag by about 33.5% when the streamwise-aligned actuators are configured to generate appropriate spanwise-orientated jets very close to the wall so that the sweeps which are mainly responsible for the skin-friction are destroyed. We demonstrate that it is possible to achieve significant drag reduction with a sparse array of streamwise-aligned plasma actuators, with one order of magnitude less actuators than previous experiments in a similar set-up.
AU  - Mahfoze,O
AU  - Laizet,S
DO  - 10.1016/j.ijheatfluidflow.2017.05.013
EP  - 94
PY  - 2017///
SN  - 0142-727X
SP  - 83
TI  - Skin-friction drag reduction in a channel flow with streamwise-aligned plasma actuators
T2  - International Journal of Heat and Fluid Flow
UR  - http://dx.doi.org/10.1016/j.ijheatfluidflow.2017.05.013
UR  - http://hdl.handle.net/10044/1/48396
VL  - 66
ER  -
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