@inproceedings{f8257b15da864b1a85562463c1f0a5ba,
title = "Skin friction drag reduction based on plasma-induced streamwise vortices",
abstract = "This work aims to manipulate a fully developed turbulent boundary layer over a flat plate based on plasma-induced streamwise vortices, with a view to reducing the friction drag. Four different plasma actuator configurations for generating streamwise vortices were explored. A surface balance technique is deployed to measure the skin-friction drag. A new calibration method is proposed for this technique to resolve accurately the friction drag change. It is found that the plasma-actuator-generated vortices and their interactions with the boundary layer may lead to a substantial drag reduction. The control efficiency is also estimated. A single hotwire is used to measure the streamwise velocity fluctuation u in the turbulent boundary layer, while flow visualization is performed in the buffer layer, which reveals that the low-speed streaks are pushed by the plasma force toward the centre of the actuator pair, forming a barrier that interferes the turbulence production cycle, and hence allowing substantial drag reduction.",
keywords = "DBD plasma actuator, Streamwise vortices, Turbulent boundary layer",
author = "Wong, \{C. W.\} and Y. Zhou and Li, \{Y. Z.\} and Zhang, \{B. F.\}",
note = "Publisher Copyright: {\textcopyright} Springer-Verlag Berlin Heidelberg 2016.; 3rd Symposium on Fluid-Structure-Sound Interactions and Control,FSSIC 2015 ; Conference date: 05-07-2017 Through 09-07-2017",
year = "2016",
doi = "10.1007/978-3-662-48868-3\_22",
language = "英语",
isbn = "9783662488669",
series = "Lecture Notes in Mechanical Engineering",
publisher = "Springer Heidelberg",
pages = "139--144",
editor = "Yu Zhou and \{Lucey \}, A.D. and Yang Liu and Lixi Huang",
booktitle = "Fluid-Structure-Sound Interactions and Control - Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control",
address = "德国",
}