Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Kristian Gustavsson"'
Publikováno v:
Physical Review Fluids. 8
Caustic singularities of the spatial distribution of particles in turbulent aerosols enhance collision rates and accelerate coagulation. Here we investigate how and where caustics form at weak particle inertia, by analysing a three-dimensional Gaussi
Publikováno v:
Physical Review Letters. 128
Publikováno v:
Nature Machine Intelligence. 2:94-103
The availability of large datasets has boosted the application of machine learning in many fields and is now starting to shape active-matter research as well. Machine learning techniques have already been successfully applied to active-matter data—
Publikováno v:
Physical Review Fluids. 7
Many plankton species undergo daily vertical migration to large depths in the turbulent ocean. To do this efficiently, the plankton can use a gyrotactic mechanism, aligning them with gravity to swim downwards, or against gravity to swim upwards. Many
Publikováno v:
Journal of the Atmospheric Sciences
Journal of the Atmospheric Sciences, American Meteorological Society, 2021, ⟨10.1175/JAS-D-20-0221.1⟩
Journal of the Atmospheric Sciences, 2021, ⟨10.1175/JAS-D-20-0221.1⟩
Journal of the Atmospheric Sciences, American Meteorological Society, 2021, ⟨10.1175/JAS-D-20-0221.1⟩
Journal of the Atmospheric Sciences, 2021, ⟨10.1175/JAS-D-20-0221.1⟩
Small non-spherical particles settling in a quiescent fluid tend to orient so that their broad side faces down, because this is a stable fixed point of their angular dynamics at small particle Reynolds number. Turbulence randomises the orientations t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82421db55655c526313a7cf5fef07664
https://hal.archives-ouvertes.fr/hal-03321211
https://hal.archives-ouvertes.fr/hal-03321211
Marine microorganisms must cope with complex flow patterns and even turbulence as they navigate the ocean. To survive they must avoid predation and find efficient energy sources. A major difficulty in analysing possible survival strategies is that th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::402cbc90610f7d8d7dbbc1cbfa4d1580
http://arxiv.org/abs/2104.11303
http://arxiv.org/abs/2104.11303
Autor:
Michele Buzzicotti, Kristian Gustavsson, Luca Biferale, Fabio Bonaccorso, Patricio Clark Di Leoni
Publikováno v:
AIxIA 2020 – Advances in Artificial Intelligence ISBN: 9783030770907
AI*IA
AI*IA
We present theoretical and numerical results concerning the problem to find the path that minimizes the time to navigate between two given points in a complex fluid under realistic navigation constraints. We contrast deterministic Optimal Navigation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf52e7b8081dfa9035669335a9b62fcf
http://hdl.handle.net/2108/289859
http://hdl.handle.net/2108/289859
Autor:
Helge I. Andersson, Lihao Zhao, Kristian Gustavsson, Bernhard Mehlig, Fengjian Jiang, Alain Pumir
Publikováno v:
Physical Review Fluids
How anisotropic particles rotate and orient in a flow depends on the hydrodynamic torque they experience. Here we compute the torque acting on a small spheroid in a uniform flow by numerically solving the Navier-Stokes equations. Particle shape is va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37b92695b562ea3def98724b1d94d94a
http://arxiv.org/abs/2005.05634
http://arxiv.org/abs/2005.05634
Autor:
Jan Meibohm, Akshay Bhatnagar, Prasad Perlekar, Kristian Gustavsson, Vikash Pandey, Bernhard Mehlig, Dhrubaditya Mitra
The dynamics of small, yet heavy, identical particles in turbulence exhibits singularities, called caustics, that lead to large fluctuations in the spatial particle-number density, and in collision velocities. For large particle, inertia the fluid ve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cae16c22708cdabe8c437ade127e7574
Autor:
Fabien Candelier, Rami J. Hamati, Darci Collins, Kristian Gustavsson, Bernhard Mehlig, Greg A. Voth
Nearly 150 years ago, Lord Kelvin proposed the isotropic helicoid, a particle with isotropic yet chiral interactions with a fluid, so that translation couples to rotation. An implementation of his design fabricated with a three-dimensional printer is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8409032001cacc3ed366306c9f3720c6