capillary transport
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2022 ◽  
Vol 5 (1) ◽  
Author(s):  
Aaron W. Green ◽  
Thomas M. DeSutter ◽  
Miranda A. Meehan ◽  
Aaron L. M. Daigh

2021 ◽  
Vol MA2021-02 (46) ◽  
pp. 1870-1870
Author(s):  
Diego Zapardiel ◽  
Arturo Sánchez-Ramos ◽  
Pablo A. Garcia-Salaberri

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
J. Van Hulle ◽  
F. Weyer ◽  
S. Dorbolo ◽  
N. Vandewalle
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Author(s):  
Alex V. Lukyanov ◽  
Vladimir V. Mitkin ◽  
Tristan Pryer ◽  
Penpark Sirimark ◽  
Theo G. Theofanous

The problem of capillary transport in fibrous porous materials at low levels of liquid saturation has been addressed. It has been demonstrated that the process of liquid spreading in this type of porous material at low saturation can be described macroscopically by a similar super-fast, nonlinear diffusion model to that which had been previously identified in experiments and simulations in particulate porous media. The macroscopic diffusion model has been underpinned by simulations using a microscopic network model. The theoretical results have been qualitatively compared with available experimental observations within the witness card technique using persistent liquids. The long-term evolution of the wetting spots was found to be truly universal and fully in line with the mathematical model developed. The result has important repercussions for the witness card technique used in field measurements of the dissemination of various low-volatility agents in imposing severe restrictions on collection and measurement times.


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