Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Pradas, Marc"'
Autor:
Daddi-Moussa-Ider, Abdallah, Tjhung, Elsen, Pradas, Marc, Richter, Thomas, Menzel, Andreas M.
Dynamics at low Reynolds numbers experiences recent revival in the fields of biophysics and active matter. While in bulk isotropic fluids it is exhaustively studied, this is less so in anisotropic fluids and in confined situations. Here, we combine t
Externí odkaz:
http://arxiv.org/abs/2407.02267
We obtain the full equations of motion for a wide, pivoted, slider bearing. These are used to review the choice of the optimal position for the pivot point, to discuss its response to time-dependent sliding velocity, and to determine the stability of
Externí odkaz:
http://arxiv.org/abs/2312.02330
We discuss a model for directed percolation in which the flux of material along each bond is a dynamical variable. The model includes a physically significant limiting case where the total flux of material is conserved. We show that the distribution
Externí odkaz:
http://arxiv.org/abs/2310.01933
If a flat, horizontal, plate settles onto a flat surface, it is known that the gap $h$ decreases with time $t$ as a power-law: $h\sim t^{-1/2}$. We consider what happens if the plate is not initially horizontal, and/or the centre of mass is not symme
Externí odkaz:
http://arxiv.org/abs/2303.13678
Autor:
Soyarslan, Celal, Pradas, Marc
We apply physics-informed neural networks (PINNs) to first-order two-scale periodic asymptotic homogenization of the property tensor in a generic elliptic equation. The problem of lack of differentiability of property tensors at the sharp phase inter
Externí odkaz:
http://arxiv.org/abs/2301.09725
Experiments investigating particles floating on a randomly stirred fluid show regions of very low density, which are not well understood. We introduce a simplified model for understanding sparsely occupied regions of the phase space of non-autonomous
Externí odkaz:
http://arxiv.org/abs/2202.12487
Autor:
Soyarslan, Celal, Pradas, Marc
Publikováno v:
In Computer Methods in Applied Mechanics and Engineering 1 July 2024 427
Publikováno v:
Phys. Rev. Fluids 6, 033904 (2021)
We investigate the evaporation of a two-dimensional droplet on a solid surface. The solid is flat but with smooth chemical variations that lead to a space-dependent local contact angle. We perform a detailed bifurcation analysis of the equilibrium pr
Externí odkaz:
http://arxiv.org/abs/2009.02512
We discuss the combined effects of overdamped motion in a quenched random potential and diffusion, in one dimension, in the limit where the diffusion coefficient is small. Our analysis considers the statistics of the mean first-passage time $T(x)$ to
Externí odkaz:
http://arxiv.org/abs/2008.07854
Many physical processes result in very uneven, apparently random, distributions of matter, characterized by fluctuations of the local density over orders of magnitude. The density of matter in the sparsest regions can have a power-law distribution, w
Externí odkaz:
http://arxiv.org/abs/1806.00748