Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Dan Lucas"'
Publikováno v:
Fluids, Vol 6, Iss 6, p 205 (2021)
In this work we consider the problem of finding the simplest arrangement of resonant deep-water gravity waves in one-dimensional propagation, from three perspectives: Theoretical, numerical and experimental. Theoretically this requires using a normal
Externí odkaz:
https://doaj.org/article/72265ea1d0a64c5ca6ec62b275efc1a1
Stabilisation of exact coherent structures in two-dimensional turbulence using time-delayed feedback
Autor:
Tatsuya Yasuda, Dan Lucas
Time-delayed feedback control, attributed to Pyragas (1992 Physics Letters 170(6) 421-428), is a method known to stabilise periodic orbits in low dimensional chaotic dynamical systems. A system of the form $\dot{\mathbf{x}}(t)=f(\mathbf{x})$ has an a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::994bf4180da64edfc9ad3ef414c5f530
Publikováno v:
Articles
Fluids, Vol 6, Iss 205, p 205 (2021)
Fluids
Volume 6
Issue 6
Fluids, Vol 6, Iss 205, p 205 (2021)
Fluids
Volume 6
Issue 6
In this work we consider the problem of finding the simplest arrangement of resonant deep-water gravity waves in one-dimensional propagation, from three perspectives: Theoretical, numerical and experimental. Theoretically this requires using a normal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16231f05ee8a72b2692a76a7abbdd34e
https://doi.org/10.3390/fluids6060205
https://doi.org/10.3390/fluids6060205
Publikováno v:
Lucas, D, Caulfield, C P & Kerswell, R 2017, ' Layer formation in horizontally forced stratified turbulence : Connecting exact coherent structures to linear instabilities ', Journal of Fluid Mechanics, vol. 832, pp. 409-437 . https://doi.org/10.1017/jfm.2017.661
We consider turbulence in a stratified ‘Kolmogorov’ flow, driven by horizontal shear in the form of sinusoidal body forcing in the presence of an imposed background linear stable stratification in the third direction. This flow configuration allo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e1d19667482c626a6c6073be93d44b0
https://doi.org/10.1017/jfm.2017.661
https://doi.org/10.1017/jfm.2017.661
Recent research has shed light on the role of coherent structures in forming layers when stably stratified turbulence is forced with horizontal shear (Lucas, Caulfield & Kerswell, J. Fluid Mech., vol. 832, 2017, pp. 409-437). Here we extend our previ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4fbbec66016bbe9547c02ae4af8e9b6
https://www.repository.cam.ac.uk/handle/1810/290320
https://www.repository.cam.ac.uk/handle/1810/290320
Publikováno v:
Advances in Service Science ISBN: 9783030047252
Data mining methods can be applied to human resources datasets to discover insights into how employees manage their careers. We examine two elements of career trajectories in federal government HR data. First, we apply association rule mining and seq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd0c4fb21d5fa5d3d00d7a82774affbf
https://doi.org/10.1007/978-3-030-04726-9_9
https://doi.org/10.1007/978-3-030-04726-9_9
Autor:
Dan Lucas, Colm-cille Caulfield
We consider turbulence driven by a large-scale horizontal shear in Kolmogorov flow (i.e. with sinusoidal body forcing) and a background linear stable stratification with buoyancy frequency $N_{B}^{2}$ imposed in the third, vertical direction in a flu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec8ca852b13e0c298f60d593e2620aaa
http://arxiv.org/abs/1706.02536
http://arxiv.org/abs/1706.02536
Autor:
Dan Lucas, Richard R Kerswell
Publikováno v:
Lucas, D & Kerswell, R R 2017, ' Sustaining processes from recurrent flows in body-forced turbulence ', Journal of Fluid Mechanics, vol. 817, R3 . https://doi.org/10.1017/jfm.2017.97
By extracting unstable invariant solutions directly from body-forced three-dimensional turbulence, we study the dynamical processes at play when the forcing is large scale and unidirectional in either the momentum or the vorticity equations. In the f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::580c8854e4f21cc2d3e171b9485897f1
http://www.scopus.com/inward/record.url?scp=85016152860&partnerID=8YFLogxK
http://www.scopus.com/inward/record.url?scp=85016152860&partnerID=8YFLogxK
Autor:
Dan Lucas, Rich Kerswell
Publikováno v:
Journal of Fluid Mechanics. 750:518-554
Kolmogorov flow in two dimensions – the two-dimensional (2D) Navier–Stokes equations with a sinusoidal body force – is considered over extended periodic domains to reveal localised spatiotemporal complexity. The flow response mimics the forcing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb893c2a63fe007115099c2d05c46460
https://doi.org/10.1017/jfm.2014.270
https://doi.org/10.1017/jfm.2014.270
Publikováno v:
Journal of Fluid Mechanics. 788
We revisit, both numerically and analytically, the finite-time blowup of the infinite-energy solution of 3D Euler equations of stagnation-point type introduced by Gibbon et al. (Physica D, vol. 132, 1999, pp. 497–510). By employing the method of ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c9721314227a4511c80ad2e2048810f
https://doi.org/10.1017/jfm.2015.734
https://doi.org/10.1017/jfm.2015.734