Large-scale turbulent secondary flows induced by spanwise alternatively distributed strips control

Ni, Weidan; Fang, Jian; Yao, Yufeng; Moulinec, Charles; Lu, Lipeng

Abstract

In this study, direct numerical simulations (DNS) of a weakly compressible turbulent channel flow with Spanwise Alternatively Distributed Strips (SADS) control are conducted to investigate the characteristics of the LSSV induced by small-scale wall actuation. SADS is obtained by applying out-of-phase control (OPC) and in-phase control (IPC), namely active wall-normal velocity fluctuations, alternatively arranged along the spanwise direction at the bottom wall of the channel.

• Presentation Conference Type: Poster
• Conference Name: UKTC Annual Workshop
• Start Date: Sep 1, 2016
• End Date: Sep 2, 2016
• Acceptance Date: Sep 1, 2016
• Publication Date: Jan 1, 2016
• Publicly Available Date: Jun 7, 2019
• Peer Reviewed: Peer Reviewed
• Public URL: https://uwe-repository.worktribe.com/output/921910
• Additional Information: Title of Conference or Conference Proceedings : UKTC Annual Workshop 2016