Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Griffiths, Ian M"'
When a fluid carrying a passive solute flows quickly through porous media, three key macroscale transport mechanisms occur. These mechanisms are diffusion, advection and dispersion, all of which depend on the microstructure of the porous medium; howe
Externí odkaz:
http://arxiv.org/abs/2410.11519
We incorporate local ventilation effects into a spatially dependent generalisation of the Wells--Riley model of airborne viral transmission. Aerosol production and removal through ventilation (global and local), biological deactivation, and gravitati
Externí odkaz:
http://arxiv.org/abs/2309.16332
Autor:
Auton, Lucy C., Pramanik, Satyajit, Dalwadi, Mohit P., MacMinn, Christopher W., Griffiths, Ian M.
A major challenge in flow through porous media is to better understand the link between microstructure and macroscale flow and transport. For idealised microstructures, the mathematical framework of homogenisation theory can be used for this purpose.
Externí odkaz:
http://arxiv.org/abs/2101.07362
We develop a spatially dependent generalisation to the Wells-Riley model and its extensions applied to COVID-19, that determines the infection risk due to airborne transmission of viruses. We assume that the concentration of infectious particles is g
Externí odkaz:
http://arxiv.org/abs/2012.12267
Publikováno v:
J. Fluid Mech. 913 (2021) A28
Membrane filtration is a vital industrial process, with applications including air purification and blood filtration. In this paper, we study the optimal design for a concertinaed filtration membrane composed of angled porous membranes and dead-ends.
Externí odkaz:
http://arxiv.org/abs/2008.07558
Publikováno v:
Phys. Rev. Fluids 5, 094501 (2020)
Periodically-driven flows are known to generate non-zero, time-averaged fluxes of heat or solute species, due to the interactions of out-of-phase velocity and temperature/concentration fields, respectively. Herein, we investigate such transport (a fo
Externí odkaz:
http://arxiv.org/abs/2006.01252
A filter comprises porous material that traps contaminants when fluid passes through under an applied pressure difference. One side-effect of this applied pressure, however, is that it compresses the filter. This changes the permeability, which may a
Externí odkaz:
http://arxiv.org/abs/1911.00051
We investigate how a filter media microstructure influences filtration performance. We derive a theory that generalizes classical multiscale models for regular structures to account for filter media with more realistic microstructures, comprising ran
Externí odkaz:
http://arxiv.org/abs/1805.07102
We study colloidal particles in a nematic-liquid-crystal-filled microfluidic channel and show how elastic interactions between the particle and the channel wall lead to different particle dynamics compared with conventional microfluidics. For a stati
Externí odkaz:
http://arxiv.org/abs/1707.09015
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