Experimental study of burst ratio effect for dielectric-barrier-discharge plasma actuator for separation control

Satoshi Sekimoto, Naoki Tanaka, Taku Nonomura, Hiroyuki Nishida, Kozo Fujii

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

An experimental study of the effect of burst ratio for a DBD plasma actuator on control- ling the separated flow is investigated in this paper. Time-averaged pressure measurements and PIV image acquisitions were conducted around a NACA0015 airfoil at the post-stall (αstall + 1deg) and the deep-stall (αstall + 3deg) angles in the condition of the Rec = 63; 000. Experiments were conducted with two types of burst frequency, F+ = 1and6, based on our previous researches. Results of time-averaged pressure measurement show that actuation with the high burst ratio can enhance turbulent transition strongly. Phase-locked PIV visualization shows the generation of multiple vorticies from the shear layer with burst actuation and the process of the vortex-pairing. This visualization reveals that F+ = 1, BR = 50% actuation generates twice vorticies than the other F+ = 1 actuations at the post-stall angle.

本文言語English
ホスト出版物のタイトルAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
出版社American Institute of Aeronautics and Astronautics Inc.
ISBN(電子版)9781624104473
DOI
出版ステータスPublished - 2017
外部発表はい
イベント55th AIAA Aerospace Sciences Meeting - Grapevine, United States
継続期間: 2017 1月 92017 1月 13

出版物シリーズ

名前AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting

Other

Other55th AIAA Aerospace Sciences Meeting
国/地域United States
CityGrapevine
Period17/1/917/1/13

ASJC Scopus subject areas

  • 航空宇宙工学

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