Duque-Daza, C., Baig, M. F., Lockerby, D., Chernyshenko, S. and Davies, Christopher  ORCID: https://orcid.org/0000-0002-5592-9541
2012.
Modelling turbulent skin-friction control using linearized Navier-Stokes equations.
Journal of Fluid Mechanics
702
, pp. 403-414.
10.1017/jfm.2012.189
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Abstract
Linearized Navier–Stokes equations are solved to investigate the impact on the growth of near-wall turbulent streaks that arises from streamwise-travelling waves of spanwise wall velocity. The percentage change in streak amplification due to the travelling waves, over a range of wave parameters, is compared to published direct numerical simulation (DNS) predictions of turbulent skin-friction reduction; a clear correlation between the two is observed. Linearized simulations at a much higher Reynolds number, more relevant to aerospace applications, produce results that show no marked differences to those obtained at low Reynolds number. It is also observed that there is a close correlation between DNS data of drag reduction and a very simple characteristic of the ‘generalized’ Stokes layer generated by the streamwise-travelling waves.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Mathematics |
| Subjects: | Q Science > QA Mathematics T Technology > TA Engineering (General). Civil engineering (General) |
| Uncontrolled Keywords: | drag reduction; turbulence control |
| Additional Information: | Pdf uploaded in accordance with publisher's policy at http://www.sherpa.ac.uk/romeo/issn/0022-1120/ (accessed 21/02/2014). |
| Publisher: | Cambridge University Press |
| ISSN: | 0022-1120 |
| Date of First Compliant Deposit: | 30 March 2016 |
| Last Modified: | 06 Jan 2024 04:52 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/25034 |
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