BibTex format
@inproceedings{Xu:2015,
author = {Xu, H and Sherwin, SJ},
title = {On a mechanism of delaying laminar-turbulent transition},
year = {2015}
}
Publications
Citation
RIS format (EndNote, RefMan)
TY - CPAPER
AB - © TU Delft. In this paper we investigate the boundary layer flows over a flat plate on which smooth localized imperfections are located. The localized imperfections have the width scale (d) comparable with the wavelength (λTS) of the Tollmien-Schlichting (T-S) waves and the height scale (h) less than the boundary layer thickness δ99. The existence of the localized imperfection gives rise to the change of the instability property of the boundary layer. The investigations are focused on the interaction between the T-S waves and the base flows distorted by smooth forward-facing steps and aim to forge links between the localized imperfections and the mechanisms of stabilizing the T-S waves. Numerical investigations show that isolated smooth forward-facing steps can perform as a robust strategy of delaying laminar-turbulent transition. Finally, direct numerical simulations are implemented to validate the strategy.
AU - Xu,H
AU - Sherwin,SJ
PY - 2015///
TI - On a mechanism of delaying laminar-turbulent transition
ER -