Thomas, Christian, Davies, Christopher ORCID: https://orcid.org/0000-0002-5592-9541, Bassom, Andrew P. and Blennerhassett, P. J. 2014. Evolution of disturbance wavepackets in an oscillatory Stokes layer. Journal of Fluid Mechanics 752 , pp. 543-571. 10.1017/jfm.2014.291 |
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Official URL: http://dx.doi.org/10.1017/jfm.2014.291
Abstract
Numerical simulation results are presented for the linear and nonlinear evolution of disturbances in a at Stokes layer. The response to a spatially localised impulsive forcing is investigated and it is found that the spatial-temporal development of the ow displays an intriguing family tree-like structure, which involves the birth of successive generations of distinct wavepacket components. It is shown that some features of this unexpected structure can be predicted using the results of a linear stability analysis based on Floquet theory.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Mathematics |
Subjects: | Q Science > QA Mathematics |
Uncontrolled Keywords: | Absolute/convective instability; boundary layer stability; transition to turbulence. |
Additional Information: | Pdf uploaded in accordance with publisher's policy at http://www.sherpa.ac.uk/romeo/issn/0022-1120/ (accessed 11/06/2014)(post print) Pdf uploaded in accordance with the publisher’s policy at http://www.sherpa.ac.uk/romeo/issn/0022-1120/ (accessed 18/08/2014)(published version) |
Publisher: | Cambridge University Press |
ISSN: | 0022-1120 |
Funders: | Australian Research Council |
Date of First Compliant Deposit: | 30 March 2016 |
Last Modified: | 06 Jan 2024 19:08 |
URI: | https://orca.cardiff.ac.uk/id/eprint/60507 |
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