Zobrazeno 1 - 10
of 424
pro vyhledávání: '"Wettlaufer, J"'
The survival probability for a periodic non-autonomous Ornstein-Uhlenbeck process is calculated analytically using two different methods. The first uses an asymptotic approach. We treat the associated Kolmogorov Backward Equation with an absorbing bo
Externí odkaz:
http://arxiv.org/abs/2406.03436
Autor:
Moon, W., Wettlaufer, J. S.
The Hadley circulation describes a planetary-scale tropical atmospheric flow, which has a major influence on climate. Contemporary theoretical understanding is based upon angular momentum conservation, the basic dynamical constraint governing the sta
Externí odkaz:
http://arxiv.org/abs/2405.02761
Autor:
Ravichandran, S., Wettlaufer, J. S.
Publikováno v:
Journal of Fluid Mechanics, Volume 998, A47, 2024
We use direct numerical simulations to study convection in rotating Rayleigh-B\'enard convection in horizontally confined geometries of a given aspect ratio, with the walls held at fixed temperatures. We show that this arrangement is unconditionally
Externí odkaz:
http://arxiv.org/abs/2304.03000
Publikováno v:
Soft Matter, 2023, 19, 8729 - 8743
We examine the buckling shape and critical compression of confined inhomogeneous composite sheets lying on a liquid foundation. The buckling modes are controlled by the bending stiffness of the sheet, the density of the substrate, and the size and th
Externí odkaz:
http://arxiv.org/abs/2303.11460
Autor:
Ravichandran, S., Wettlaufer, J. S.
Publikováno v:
Physical Review Fluids, Vol. 8, No. 6, 2023
We study the orientation dynamics of two-dimensional concavo-convex solid bodies more dense than the fluid through which they fall under gravity. We show that the orientation dynamics of the body, quantified in terms of the angle $\phi$ relative to t
Externí odkaz:
http://arxiv.org/abs/2212.12014
Motivated by wind blowing over water, we use asymptotic methods to study the evolution of short wavelength interfacial waves driven by the combined action of these flows. We solve the Rayleigh equation for the stability of the shear flow, and constru
Externí odkaz:
http://arxiv.org/abs/2211.02942
Publikováno v:
Chaos vol 33, 093132 (2023)
We analyze and model the stochastic behavior of paleoclimate time series and assess the implications for the coupling of climate variables during the Pleistocene glacial cycles. We examine 800 kyr of carbon dioxide, methane, nitrous oxide, and temper
Externí odkaz:
http://arxiv.org/abs/2210.00308
The Landauer principle sets a fundamental thermodynamic constraint on the minimum amount of heat that must be dissipated to erase one logical bit of information through a quasi-statically slow protocol. For finite time information erasure, the thermo
Externí odkaz:
http://arxiv.org/abs/2206.02064
Autor:
Vachier, Jeremy, Wettlaufer, J. S.
Biota are found in glaciers, ice sheets and permafrost. Ice bound micro-organisms evolve in a complex mobile environment facilitated or hindered by a range of bulk and surface interactions. When a particle is embedded in a host solid near its bulk me
Externí odkaz:
http://arxiv.org/abs/2203.14038
Publikováno v:
Journal of Fluid Mechanics,944,A8(2021)
When wind blows over water, ripples are generated on the water surface. These ripples can be regarded as perturbations of the wind field, which is modelled as a parallel inviscid flow. For a given wavenumber $k$, the perturbed streamfunction of the w
Externí odkaz:
http://arxiv.org/abs/2107.06844