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Radial Imbibition in Paper under Temperature Differences

ESIME Azcapotzalco, Instituto Politécnico Nacional, Av. de las Granjas 682 col. Santa Catarina, CDMX, 02250 México City, Mexico
ETSI Aeronautica y del Espacio UPM, Plaza Cardenal Cisneros 3, 28040 Madrid, Spain
Instituto de Física Arroyo Seco IFAS (UNCPBA) and CIFICEN (UNCPBA-CICPBA-CONICET), Pinto 399, 7000 Tandil, Argentina
IMeTTyB, Universidad Favaloro-CONICET, Solís 453, C1078AAI Buenos Aires, Argentina
Author to whom correspondence should be addressed.
Fluids 2019, 4(2), 86;
Received: 21 March 2019 / Revised: 23 April 2019 / Accepted: 5 May 2019 / Published: 11 May 2019
(This article belongs to the Special Issue Free surface flows)
PDF [572 KB, uploaded 26 June 2019]


Spontaneous radial imbibition into thin circular samples of porous material when they have been subjected to radial temperature differences was analyzed theoretically and experimentally. The use of the Darcy equation allowed us to take into account temperature variations in the dynamic viscosity and surface tension in order to find the one-dimensional equation for the imbibition fronts. Experiments using blotting paper showed a good fit between the experimental data and theoretical profiles through the estimation of a single parameter. View Full-Text
Keywords: imbibition; porous media; thermocapillary phenomena imbibition; porous media; thermocapillary phenomena

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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MDPI and ACS Style

López-Villa, A.; Medina, A.; Higuera, F.J.; Mac Intyre, J.R.; Perazzo, C.A.; Gomba, J.M. Radial Imbibition in Paper under Temperature Differences. Fluids 2019, 4, 86.

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