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Reversible and Irreversible Processes in Drying and Wetting of Soil

In this article, we provide a detailed description of a modeling technique for the capillary hysteresis in a soil-like porous material based on a Generalized Preisach Model. The identification of the reversible and irreversible Preisach distributions was performed with the first-order reversal curve...

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Detalles Bibliográficos
Autores principales: Bodale, Ilie, Stancu, Alexandru
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6981664/
https://www.ncbi.nlm.nih.gov/pubmed/31905633
http://dx.doi.org/10.3390/ma13010135
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author Bodale, Ilie
Stancu, Alexandru
author_facet Bodale, Ilie
Stancu, Alexandru
author_sort Bodale, Ilie
collection PubMed
description In this article, we provide a detailed description of a modeling technique for the capillary hysteresis in a soil-like porous material based on a Generalized Preisach Model. The identification of the reversible and irreversible Preisach distributions was performed with the first-order reversal curve (FORC) diagram technique, which is very popular now in magnetism and in other areas of science to give a fingerprint of the studied system. A special attention was given to the evaluation of the reversible component. In this case, we used a set of data published in 1965 by Morrow and Harris which has been used as a reference by many other researchers since. The advantage of this approach is that the experimental FORC distributions can be described with analytical functions and easily implemented in the mentioned Preisach-type model. Our research is also focused on the development of a characterization tool for the soil using the soil-moisture hysteresis. The systematic use of scanning curves provides a (FORC) diagram linked to the physical properties of the studied soil. The agreement between the experimental data and the Preisach model using the set of parameters found through the FORC technique is really noticeable and gives a good practical option to the researchers to use a method with a strong predictive capability.
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spelling pubmed-69816642020-02-03 Reversible and Irreversible Processes in Drying and Wetting of Soil Bodale, Ilie Stancu, Alexandru Materials (Basel) Article In this article, we provide a detailed description of a modeling technique for the capillary hysteresis in a soil-like porous material based on a Generalized Preisach Model. The identification of the reversible and irreversible Preisach distributions was performed with the first-order reversal curve (FORC) diagram technique, which is very popular now in magnetism and in other areas of science to give a fingerprint of the studied system. A special attention was given to the evaluation of the reversible component. In this case, we used a set of data published in 1965 by Morrow and Harris which has been used as a reference by many other researchers since. The advantage of this approach is that the experimental FORC distributions can be described with analytical functions and easily implemented in the mentioned Preisach-type model. Our research is also focused on the development of a characterization tool for the soil using the soil-moisture hysteresis. The systematic use of scanning curves provides a (FORC) diagram linked to the physical properties of the studied soil. The agreement between the experimental data and the Preisach model using the set of parameters found through the FORC technique is really noticeable and gives a good practical option to the researchers to use a method with a strong predictive capability. MDPI 2019-12-28 /pmc/articles/PMC6981664/ /pubmed/31905633 http://dx.doi.org/10.3390/ma13010135 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bodale, Ilie
Stancu, Alexandru
Reversible and Irreversible Processes in Drying and Wetting of Soil
title Reversible and Irreversible Processes in Drying and Wetting of Soil
title_full Reversible and Irreversible Processes in Drying and Wetting of Soil
title_fullStr Reversible and Irreversible Processes in Drying and Wetting of Soil
title_full_unstemmed Reversible and Irreversible Processes in Drying and Wetting of Soil
title_short Reversible and Irreversible Processes in Drying and Wetting of Soil
title_sort reversible and irreversible processes in drying and wetting of soil
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6981664/
https://www.ncbi.nlm.nih.gov/pubmed/31905633
http://dx.doi.org/10.3390/ma13010135
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