Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Desmond, Kenneth W"'
Publikováno v:
In Computer Methods in Applied Mechanics and Engineering 1 December 2021 386
Publikováno v:
Phys. Rev. E 105, 014603 (2022)
We experimentally and computationally study the flow of a quasi-two-dimensional emulsion through a constricting hopper shape. Our area fractions are above jamming such that the droplets are always in contact with one another and are in many cases hig
Externí odkaz:
http://arxiv.org/abs/1503.07569
Autor:
Desmond, Kenneth W., Weeks, Eric R.
Publikováno v:
Phys. Rev. Lett. 115, 098302 (2015)
We study how local rearrangements alter droplet stresses within flowing dense quasi-two-dimensional emulsions at area fractions $\phi \geq 0.88$. Using microscopy, we measure droplet positions while simultaneously using their deformed shape to measur
Externí odkaz:
http://arxiv.org/abs/1306.0269
Autor:
Desmond, Kenneth W., Weeks, Eric R.
Publikováno v:
Phys. Rev. E. 90, 022204 (2014)
The densest amorphous packing of rigid particles is known as random close packing. It has long been appreciated that higher densities are achieved by using collections of particles with a variety of sizes. The variety of sizes is often quantified by
Externí odkaz:
http://arxiv.org/abs/1303.4627
Publikováno v:
Soft Matter 9, 3424-3436 (2013)
We experimentally study the jamming of quasi-two-dimensional emulsions. Our experiments consist of oil-in-water emulsion droplets confined between two parallel plates. From the droplet outlines, we can determine the forces between every droplet pair
Externí odkaz:
http://arxiv.org/abs/1206.0070
In this study we characterize the rheology of fluidized granular matter subject to secondary forcing. Our approach consists of first fluidizing granular matter in a drum half filled with grains via simple rotation, and then superimposing oscillatory
Externí odkaz:
http://arxiv.org/abs/1107.0357
Topological rearrangements and stress fluctuations in quasi-two-dimensional hopper flow of emulsions
Publikováno v:
Soft Matter 8, 10486 (2012)
We experimentally study the shear flow of oil-in-water emulsion droplets in a thin sample chamber with a hopper shape. In this thin chamber, the droplets are quasi-2D in shape. The sample is at an area fraction above jamming and forced to flow with a
Externí odkaz:
http://arxiv.org/abs/1105.3099
Publikováno v:
Soft Matter 7, 1472-1482 (2011)
We study concentrated binary colloidal suspensions, a model system which has a glass transition as the volume fraction $\phi$ of particles is increased. We use confocal microscopy to directly observe particle motion within dense samples with $\phi$ r
Externí odkaz:
http://arxiv.org/abs/0911.0702
Autor:
Desmond, Kenneth W., Weeks, Eric R.
Publikováno v:
Phys. Rev. E 80, 051305 (2009)
Studies of random close packing of spheres have advanced our knowledge about the structure of systems such as liquids, glasses, emulsions, granular media, and amorphous solids. When these systems are confined their structural properties change. To un
Externí odkaz:
http://arxiv.org/abs/0903.0864
Akademický článek
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