Zobrazeno 1 - 10
of 159
pro vyhledávání: '"Mehlig, Bernhard"'
Autor:
Kainz, Johannes, Makwana, Nikitabahen N., Kumar, Bipin, Ravichandran, S., Fries, Johan, Sardina, Gaetano, Mehlig, Bernhard, Hoffmann, Fabian
Considering turbulence is crucial to understanding clouds. However, covering all scales involved in the turbulent mixing of clouds with their environment is computationally challenging, urging the development of simpler models to represent some of th
Externí odkaz:
http://arxiv.org/abs/2410.03789
We use reinforcement learning to find strategies that allow microswimmers in turbulence to avoid regions of large strain. This question is motivated by the hypothesis that swimming microorganisms tend to avoid such regions to minimise the risk of pre
Externí odkaz:
http://arxiv.org/abs/2404.19561
Autor:
Huseby, Elias, Gissinger, Josephine, Candelier, Fabien, Pujara, Nimish, Verhille, Gautier, Mehlig, Bernhard, Voth, Greg
We investigate the sedimentation of chiral particles in viscous fluid flow. We identify helical ribbons as simple particles with strong translation-rotation coupling whose symmetry ensures that the centers of mass, buoyancy, resistance, and mobility
Externí odkaz:
http://arxiv.org/abs/2403.18157
Zooplankton in a quiescent environment can detect predators by hydrodynamic sensing, triggering powerful escape responses. Since turbulent strain tends to mask the hydrodynamic signal, the organisms should avoid such regions, but it is not known how
Externí odkaz:
http://arxiv.org/abs/2309.09641
Publikováno v:
CVPR (2023) 13701-13711
We introduce ensembles of stochastic neural networks to approximate the Bayesian posterior, combining stochastic methods such as dropout with deep ensembles. The stochastic ensembles are formulated as families of distributions and trained to approxim
Externí odkaz:
http://arxiv.org/abs/2212.08123
Publikováno v:
Journal of Fluid Mechanics 954 (2023) A25
We compute the full set of second-order inertial corrections to the instantaneous force and torque acting on a small spherical rigid particle moving unsteadily in a general steady linear flow. This is achieved by using matched asymptotic expansions a
Externí odkaz:
http://arxiv.org/abs/2208.11565
Publikováno v:
Phys. Rev. Fluids 8, 024305 (2023)
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
Externí odkaz:
http://arxiv.org/abs/2207.14190
Autor:
Collins, Darci, Hamati, Rami J., Candelier, Fabien, Gustavsson, Kristian, Mehlig, Bernhard, Voth, Greg A.
Publikováno v:
Phys. Rev. Fluids 6, 074302 (2021)
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:
http://arxiv.org/abs/2006.08282
Autor:
Mojica-Benavides, Martin, van Niekerk, David D., Mijalkov, Mite, Snoep, Jacky L., Mehlig, Bernhard, Volpe, Giovanni, Goksör, Mattias, Adiels, Caroline B.
Publikováno v:
PNAS 118 (2021) e2010075118
Metabolic oscillations in single cells underlie the mechanisms behind cell synchronization and cell-cell communication. For example, glycolytic oscillations mediated by biochemical communication between cells may synchronize the pulsatile insulin sec
Externí odkaz:
http://arxiv.org/abs/1909.05187