Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Moritz Linkmann"'
Autor:
Andrés Cremades, Sergio Hoyas, Rahul Deshpande, Pedro Quintero, Martin Lellep, Will Junghoon Lee, Jason P. Monty, Nicholas Hutchins, Moritz Linkmann, Ivan Marusic, Ricardo Vinuesa
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-12 (2024)
Abstract Despite its great scientific and technological importance, wall-bounded turbulence is an unresolved problem in classical physics that requires new perspectives to be tackled. One of the key strategies has been to study interactions among the
Externí odkaz:
https://doaj.org/article/bad246b40a5c4e169d43de69a1f29ec7
Publikováno v:
Capocci, D, Johnson, P L, Oughtton, S, Biferale, L & Linkmann, M 2023, ' New Exact Betchov-like Relation for the Helicity Flux in Homogeneous Turbulence ', Journal of Fluid Mechanics, vol. 963, R1 . https://doi.org/10.1017/jfm.2023.236
In homogeneous and isotropic turbulence, the relative contributions of different physical mechanisms to the energy cascade can be quantified by an exact decomposition of the energy flux (Johnson, Phys. Rev. Lett., vol. 124, 2020, 104501; J. Fluid Mec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e32ae77e93d9d4b0986019fd78b68eb
https://hdl.handle.net/20.500.11820/f9e542cf-940f-4d68-b77b-1cf54432a20f
https://hdl.handle.net/20.500.11820/f9e542cf-940f-4d68-b77b-1cf54432a20f
Autor:
Andres Cremades, Sergio Hoyas, Pedro Quintero, Martin Lellep, Moritz Linkmann, Ricardo Vinuesa
Despite its great scientific and technological importance, wall-bounded turbulence is an unresolved problem that requires new perspectives to be tackled. One of the key strategies has been to study interactions among the coherent structures in the fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe38fdcc9c6a5808211107115ebc7014
https://doi.org/10.21203/rs.3.rs-2923712/v1
https://doi.org/10.21203/rs.3.rs-2923712/v1
Autor:
Yasmin Hengster, Martin Lellep, Julian Weigel, Matthew Bross, Johannes Bosbach, Daniel Schanz, Andreas Schröder, Florian Huhn, Matteo Novara, Daniel Garaboa-Paz, Christian Kähler, Moritz Linkmann
Using curvature and torsion to describe Lagrangian trajectories gives a full description of these as well as an insight into small and large time scales as temporal derivatives up to order 3 are involved. One might expect that the statistics of these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bdc8e15d6314fee99516e1b961c8feb
Recent studies of pressure-driven flows of dilute polymer solutions in straight channels demonstrated the existence of two-dimensional coherent structures that are disconnected from the laminar state and appear through a sub-critical bifurcation from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0237cb355453cf49093b8dd125198a6
http://arxiv.org/abs/2211.09063
http://arxiv.org/abs/2211.09063
Publikováno v:
Journal of Fluid Mechanics. 942
Machine Learning (ML) is becoming increasingly popular in fluid dynamics. Powerful ML algorithms such as neural networks or ensemble methods are notoriously difficult to interpret. Here, we introduce the novel Shapley Additive Explanations (SHAP) alg
Publikováno v:
GAMM Mitteilungen, 45(1):e202200003. Wiley-VCH Verlag
Streaming Dynamic Mode Decomposition (sDMD) (Hemati et al., Phys. Fluids 26(2014)) is a low-storage version of Dynamic Mode Decomposition (DMD) (Schmid, J. Fluid Mech. 656 (2010)), a data-driven method to extract spatio-temporal flow patterns. Stream
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22894d000abeecc4decc016f1d4ce33f
https://research.utwente.nl/en/publications/69a1a072-5516-4167-bbe6-3c2e75777493
https://research.utwente.nl/en/publications/69a1a072-5516-4167-bbe6-3c2e75777493
Publikováno v:
Yang, Y, Linkmann, M, Biferale, L & Wan, M 2021, ' Effects of Forcing Mechanisms on the Multiscale Properties of Magnetohydrodynamics ', Astrophysical Journal, vol. 909, 175 . https://doi.org/10.3847/1538-4357/abdf58
We performed numerical simulations to study the response of magnetohydrodynamics (MHD) to large-scale stochastic forcing mechanisms parameterized by one parameter, 0 ≤ a ≤ 1, going from direct injection on the velocity field (a = 1) to stirring a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10c70f32b3f591577e0bd82881e24e57
https://www.pure.ed.ac.uk/ws/files/218947428/MHD_forcing.pdf
https://www.pure.ed.ac.uk/ws/files/218947428/MHD_forcing.pdf
We perform a linear stability analysis of viscoelastic plane Couette and plane Poiseuille flows with free-slip boundary conditions. The fluid is described by the Oldroyd-B constitutive model, and the flows are driven by a suitable body force. We find
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49a7d5174ecdedfe1351a399b16e246a
Publikováno v:
Journal of Fluid Mechanics. 900
Considering channel flow at Reynolds numbers below the linear stability threshold of the laminar profile as a generic example system showing a subcritical transition to turbulence connected with the existence of simple invariant solutions, we here di