Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Jan Meibohm"'
Autor:
Jan Meibohm, Massimiliano Esposito
Publikováno v:
New Journal of Physics, Vol 25, Iss 2, p 023034 (2023)
We study the time evolution of thermodynamic observables that characterise the dissipative nature of thermal relaxation after an instantaneous temperature quench. Combining tools from stochastic thermodynamics and large-deviation theory, we develop a
Externí odkaz:
https://doaj.org/article/04d6ea5709fe4cd7809cb627fff43bb4
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29775f4aa6e286ab4f10e099895653de
https://doi.org/10.1103/physrevfluids.8.024305
https://doi.org/10.1103/physrevfluids.8.024305
Autor:
Jan Meibohm, Massimiliano Esposito
We study the time evolution of thermodynamic observables that characterise the dissipative nature of thermal relaxation after an instantaneous temperature quench. Combining tools from stochastic thermodynamics and large-deviation theory, we develop a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d830b908a8819c2fd2601becf1d6ac1
Publikováno v:
info:eu-repo/grantAgreement/EC/H2020/681456
In a recent Letter [A. Lapolla and A. Godec, Phys. Rev. Lett. 125, 110602 (2020)], thermal relaxation was observed to occur faster from cold to hot (heating) than from hot to cold (cooling). Here we show that overdamped diffusion in anharmonic potent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::312f76bacf03c4dc0a8a923a0627a9dd
https://doi.org/10.1103/physreve.104.l032105
https://doi.org/10.1103/physreve.104.l032105
Autor:
Jan Meibohm, Massimiliano Esposito
We uncover a finite-time dynamical phase transition in the thermal relaxation of a mean-field magnetic model. The phase transition manifests itself as a cusp singularity in the probability distribution of the magnetisation that forms at a critical ti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45f97ef9ec05a39a758f1d13c9bde0ee
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:
Jan Meibohm, Bernhard Mehlig
Publikováno v:
Physical Review E. 100
We study a one-dimensional model for heavy particles in a compressible fluid. The fluid-velocity field is modelled by a persistent Gaussian random function, and the particles are assumed to be weakly inertial. Since one-dimensional fluid-velocity fie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da5457d14566adf2ac68b767ccbd52c3
https://doi.org/10.1103/physreve.100.023102
https://doi.org/10.1103/physreve.100.023102
We study spatial clustering in a discrete, one-dimensional, stochastic, toy model of heavy particles in turbulence and calculate the spectrum of multifractal dimensions $D_q$ as functions of a dimensionless parameter, $\alpha$, that plays the role of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2983076b26a100419b5465e41133114
http://arxiv.org/abs/1806.08207
http://arxiv.org/abs/1806.08207
We investigate the distribution of relative velocities between small heavy particles of different sizes in turbulence by analysing a statistical model for bidisperse turbulent suspensions, containing particles with two different Stokes numbers. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84adcb6563371c9d479c041397b6f7c0
Publikováno v:
Physical Review Fluids. 1
Singular perturbation theory calculations of the effect of fluid inertia on the angular velocity of a small spheroid in a shear flow show how weak fluid inertia reduces the angular velocity in an unbounded shear, and how this reduction depends upon t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15f373146cb37e6a1f87da0badd55c4d
https://doi.org/10.1103/physrevfluids.1.084203
https://doi.org/10.1103/physrevfluids.1.084203