TITLE:
Control of Karman Vortex Street behind a Thin Airfoil at Low Reynolds Number
AUTHORS:
Shohei Takagi, Yasufumi Konishi, Shigeru Obayashi, Masato Asai
KEYWORDS:
Karman Vortex Street, Vortex Suppresion, Absolute Instability, Convective Instability
JOURNAL NAME:
Journal of Flow Control, Measurement & Visualization,
Vol.4 No.3,
July
28,
2016
ABSTRACT: To control the Karman vortex street formed behind a thin airfoil at a certain incidence, a control cylinder was placed at the suction side apart from the airfoil in the downstream region. Both smoke visualization and hot-wire measurements confirmed that the Karman vortex street was completely suppressed. The mechanism for suppression of the vortex street was examined with a hot-wire survey.