8 citations · 26 across the 10 of their papers we have counts for
4 papers · 1 filter
Revisiting Maxwell-Smoluchowski theory: low surface roughness in straight channels
Timothy Chumley, Renato Feres, Luis Alberto Garcia German +1
The Maxwell-Smoluchowski (MS) theory of gas diffusion is revisited here in the context of gas transport in straight channels in the Knudsen regime of large mean free path. This cla…
Dynamics of the no-slip Galton board
Jan Ahmed, Timothy Chumley, Scott Cook +5
The ideal Galton board and Lorentz gas billiard models have been studied numerically and analytically primarily in settings where friction and rotational velocity are neglected. We…
Knudsen diffusivity in random billiards: spectrum, geometry, and computation
Timothy Chumley, Renato Feres, Luis Alberto Garcia German
We develop an analytical framework and numerical approach to obtain the coefficient of self-diffusivity for the transport of a rarefied gas in channels in the limit of large Knudse…
Rolling and no-slip bouncing in cylinders
Timothy Chumley, Scott Cook, Christopher Cox +1
The purpose of this paper is to compare a classical non-holonomic system---a sphere rolling against the inner surface of a vertical cylinder under gravity---and a class of discrete…