Analytical approach for the Lucas-Washburn equation
(2002) In Journal of Colloid and Interface Science 250(2). p.415-421- Abstract
- Porous media can be characterized by studying the kinetics of liquid rise within the pore spaces. Although porous media generally have a complex structure, they can be modeled as a single, vertical capillary or as an assembly of such capillaries. The main difficulties lie in separately estimating the effective mean radius of the capillaries and the contact angle between the liquid and the pore. In this paper we circumvent these obstacies by exploring another approach and suggest an analytical approach of the classical Lucas-Washburn equation (LWE). Specifically, we consider that the contact angle between the liquid meniscus and the inner surface of the capillary becomes a dynamic contact angle when the liquid front is in movement. It has... (More)
- Porous media can be characterized by studying the kinetics of liquid rise within the pore spaces. Although porous media generally have a complex structure, they can be modeled as a single, vertical capillary or as an assembly of such capillaries. The main difficulties lie in separately estimating the effective mean radius of the capillaries and the contact angle between the liquid and the pore. In this paper we circumvent these obstacies by exploring another approach and suggest an analytical approach of the classical Lucas-Washburn equation (LWE). Specifically, we consider that the contact angle between the liquid meniscus and the inner surface of the capillary becomes a dynamic contact angle when the liquid front is in movement. It has previously been demonstrated that the resulting time dependence is due to frictional dissipation at the moving wetting front. (C) 2002 Elsevier Science (USA). (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/336047
- author
- Hamraoui, A and Nylander, Tommy LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- dynamic contact angle, wetting-line fraction, capillary rise
- in
- Journal of Colloid and Interface Science
- volume
- 250
- issue
- 2
- pages
- 415 - 421
- publisher
- Academic Press
- external identifiers
-
- wos:000176074000017
- scopus:0036352970
- ISSN
- 1095-7103
- DOI
- 10.1006/jcis.2002.8288
- language
- English
- LU publication?
- yes
- id
- 4a6f21ae-0c23-4041-bf5f-d00e50ded62e (old id 336047)
- date added to LUP
- 2016-04-01 12:27:59
- date last changed
- 2025-04-04 15:09:12
@article{4a6f21ae-0c23-4041-bf5f-d00e50ded62e,
abstract = {{Porous media can be characterized by studying the kinetics of liquid rise within the pore spaces. Although porous media generally have a complex structure, they can be modeled as a single, vertical capillary or as an assembly of such capillaries. The main difficulties lie in separately estimating the effective mean radius of the capillaries and the contact angle between the liquid and the pore. In this paper we circumvent these obstacies by exploring another approach and suggest an analytical approach of the classical Lucas-Washburn equation (LWE). Specifically, we consider that the contact angle between the liquid meniscus and the inner surface of the capillary becomes a dynamic contact angle when the liquid front is in movement. It has previously been demonstrated that the resulting time dependence is due to frictional dissipation at the moving wetting front. (C) 2002 Elsevier Science (USA).}},
author = {{Hamraoui, A and Nylander, Tommy}},
issn = {{1095-7103}},
keywords = {{dynamic contact angle; wetting-line fraction; capillary rise}},
language = {{eng}},
number = {{2}},
pages = {{415--421}},
publisher = {{Academic Press}},
series = {{Journal of Colloid and Interface Science}},
title = {{Analytical approach for the Lucas-Washburn equation}},
url = {{http://dx.doi.org/10.1006/jcis.2002.8288}},
doi = {{10.1006/jcis.2002.8288}},
volume = {{250}},
year = {{2002}},
}