On the Friction Drag Reduction Effect by a Control of Large-Scale Turbulent Structures

On the Friction Drag Reduction Effect by a Control of Large-Scale Turbulent Structures

Direct numerical simulation (DNS) of a feedback-controlled turbulent channel flow at Reτ = 640 is carried out. As an idealized feedback control, we selectively damp either the small scale wall-normal velocity fluctuations (defined as those with the spanwise wavelength smaller than 300 wall u...

Full description

Bibliographic Details
Main Authors: Koji FUKAGATA, Michio KOBAYASHI, Nobuhide KASAGI
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2010-12-01
Series:Journal of Fluid Science and Technology
Subjects:
turbulent flow
large-scale structure
flow control
drag reduction
numerical simulation
Online Access:https://www.jstage.jst.go.jp/article/jfst/5/3/5_3_574/_pdf/-char/en

Internet

https://www.jstage.jst.go.jp/article/jfst/5/3/5_3_574/_pdf/-char/en

Similar Items