A mathematical model of tortuosity in soil considering particle arrangement

Zhang, S; Yan, H; Teng, J; Sheng, D

A mathematical model of tortuosity in soil considering particle arrangement

Zhang, S Yan, H Teng, J Sheng, D

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Publisher:: Wiley
Publication Type:: Journal Article
Citation:: Vadose Zone Journal, 2020, 19, (1)
Issue Date:: 2020-01-01

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Field	Value	Language
dc.contributor.author	Zhang, S
dc.contributor.author	Yan, H
dc.contributor.author	Teng, J
dc.contributor.author	Sheng, D https://orcid.org/0000-0002-1665-6931
dc.date.accessioned	2020-10-17T01:14:37Z
dc.date.available	2020-10-17T01:14:37Z
dc.date.issued	2020-01-01
dc.identifier.citation	Vadose Zone Journal, 2020, 19, (1)
dc.identifier.issn	1539-1663
dc.identifier.issn	1539-1663
dc.identifier.uri	http://hdl.handle.net/10453/143326
dc.description.abstract	© 2020 The Authors. Vadose Zone Journal published by Wiley Periodicals, Inc. on behalf of Soil Science Society of America Tortuosity is an important parameter for studying the permeability of soil. Existing studies of soil tortuosity are usually of empirical nature and attempt to relate tortuosity to soil porosity alone. By assuming a laminar flow through the pores of two-dimensional square solid particles, we present a mathematical model for calculating soil tortuosity under different particle arrangements. The effect of the randomness of the particle arrangement on the tortuosity is evaluated, which generates the variation range of the tortuosity. The proposed model provides the upper and lower bounds of the tortuosity, while existing empirical models tend to fall within these bounds. The consistency between the proposed model and the numerical calculation provides a validity for the proposed model.
dc.language	en
dc.publisher	Wiley
dc.relation.ispartof	Vadose Zone Journal
dc.relation.isbasedon	10.1002/vzj2.20004
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0406 Physical Geography and Environmental Geoscience, 0503 Soil Sciences, 0703 Crop and Pasture Production
dc.subject.classification	Environmental Engineering
dc.title	A mathematical model of tortuosity in soil considering particle arrangement
dc.type	Journal Article
utslib.citation.volume	19
utslib.for	0406 Physical Geography and Environmental Geoscience
utslib.for	0503 Soil Sciences
utslib.for	0703 Crop and Pasture Production
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	open_access	*
dc.date.updated	2020-10-17T01:14:07Z
pubs.issue	1
pubs.publication-status	Published
pubs.volume	19
utslib.citation.issue	1

Abstract:

© 2020 The Authors. Vadose Zone Journal published by Wiley Periodicals, Inc. on behalf of Soil Science Society of America Tortuosity is an important parameter for studying the permeability of soil. Existing studies of soil tortuosity are usually of empirical nature and attempt to relate tortuosity to soil porosity alone. By assuming a laminar flow through the pores of two-dimensional square solid particles, we present a mathematical model for calculating soil tortuosity under different particle arrangements. The effect of the randomness of the particle arrangement on the tortuosity is evaluated, which generates the variation range of the tortuosity. The proposed model provides the upper and lower bounds of the tortuosity, while existing empirical models tend to fall within these bounds. The consistency between the proposed model and the numerical calculation provides a validity for the proposed model.

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http://hdl.handle.net/10453/143326