Un método numérico para la obtención de relaciones constitutivas en rocas fracturadas
In this study constitutive relations for unsaturated fractured rocks using a numerical procedure that mimics the laboratory technique of measurement are determined. Three-dimensional rock samples with random vertical and horizontal fractures are computationally constructed. Each fracture is conceptu...
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CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa
2011
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Acceso en línea: | https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/51 |
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I15-R229-article-512022-02-16T13:49:24Z Un método numérico para la obtención de relaciones constitutivas en rocas fracturadas Monachesi, Leonardo Guarracino, Luis Relaciones constitutivas Flujo no saturado Rocas fracturadas Constitutive relations Unsaturated flow Fractured rocks In this study constitutive relations for unsaturated fractured rocks using a numerical procedure that mimics the laboratory technique of measurement are determined. Three-dimensional rock samples with random vertical and horizontal fractures are computationally constructed. Each fracture is conceptualized as a three-dimensional plate whose hydraulic properties are described by the van Genuchten model. The procedure is based on the numerical solution of the steady-state unsaturated flow equation in a three-dimensional cubic domain, on a regular mesh of one million elements, using a hybridized mixed finite element method. The saturation and hydraulic conductivity values are numerically computed from the simulation results, for several values of pressure head. The simulated relations are fitted using two recently proposed analytical expressions for unsaturated fractured rocks. Numerical examples show that both models can match reasonably the simulated saturation relations. En este estudio se determinan las relaciones constitutivas para rocas fracturadas no saturadas mediante un procedimiento numérico que imita las técnicas de medición utilizadas en laboratorio. En forma computacional se generan muestras tridimensionales de roca con fracturas verticales y horizontales aleatorias. Cada fractura es conceptualizada como una placa tridimensional cuyas propiedades hidráulicas son descritas por el modelo de van Genuchten. El procedimiento se basa en la solución numérica de la ecuación de flujo no saturado estacionario en una malla regular de un millón de elementos utilizando un método híbrido mixto de elementos finitos. Los valores de saturación y conductividad hidráulica relativa se calculan numéricamente a partir de los resultados de la simulación para distintos valores de altura de presión. Las relaciones simuladas son ajustadas utilizando dos expresiones analíticas recientemente propuestas para rocas fracturadas no saturadas. Ejemplos numéricos muestran que ambos modelos pueden ajustar razonablemente las relaciones de saturación simuladas. CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa 2011-12-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/51 10.35305/curiham.v17i0.51 Cuadernos del CURIHAM is a half-year publication of the Centro Universitario de Rosario of hydro-environmental research directed by Adelma Mancinelli. It is dedicated to spreading the results of basic and applied research as well as technological innovations on the realm of hidro-environmental issues. It may include field study results, interdisciplinary studies or studies on the state of art on the field: basic hydraulics, fluvial and hydrodinamics, superficial and underground hydrology, urban and stochastic hydrology, planning and management of hydric resources, environmental evaluation, pollution and quality of the water, politics and water legislation, regional hydro-environmental management, hydraulic construction, methods and techniques and everything related to hydro-environmental sciences.; Vol. 17 (2011); 1-8 Cuadernos del CURIHAM; Vol. 17 (2011); 1-8 2683-8168 spa https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/51/40 Derechos de autor 2011 Leonardo Monachesi, Luis Guarracino https://creativecommons.org/licenses/by-nc-sa/4.0 |
institution |
Universidad Nacional de Rosario |
institution_str |
I-15 |
repository_str |
R-229 |
container_title_str |
Cuadernos del CURIHAM |
language |
Español |
format |
Artículo revista |
topic |
Relaciones constitutivas Flujo no saturado Rocas fracturadas Constitutive relations Unsaturated flow Fractured rocks |
spellingShingle |
Relaciones constitutivas Flujo no saturado Rocas fracturadas Constitutive relations Unsaturated flow Fractured rocks Monachesi, Leonardo Guarracino, Luis Un método numérico para la obtención de relaciones constitutivas en rocas fracturadas |
topic_facet |
Relaciones constitutivas Flujo no saturado Rocas fracturadas Constitutive relations Unsaturated flow Fractured rocks |
author |
Monachesi, Leonardo Guarracino, Luis |
author_facet |
Monachesi, Leonardo Guarracino, Luis |
author_sort |
Monachesi, Leonardo |
title |
Un método numérico para la obtención de relaciones constitutivas en rocas fracturadas |
title_short |
Un método numérico para la obtención de relaciones constitutivas en rocas fracturadas |
title_full |
Un método numérico para la obtención de relaciones constitutivas en rocas fracturadas |
title_fullStr |
Un método numérico para la obtención de relaciones constitutivas en rocas fracturadas |
title_full_unstemmed |
Un método numérico para la obtención de relaciones constitutivas en rocas fracturadas |
title_sort |
un método numérico para la obtención de relaciones constitutivas en rocas fracturadas |
description |
In this study constitutive relations for unsaturated fractured rocks using a numerical procedure that mimics the laboratory technique of measurement are determined. Three-dimensional rock samples with random vertical and horizontal fractures are computationally constructed. Each fracture is conceptualized as a three-dimensional plate whose hydraulic properties are described by the van Genuchten model. The procedure is based on the numerical solution of the steady-state unsaturated flow equation in a three-dimensional cubic domain, on a regular mesh of one million elements, using a hybridized mixed finite element method. The saturation and hydraulic conductivity values are numerically computed from the simulation results, for several values of pressure head. The simulated relations are fitted using two recently proposed analytical expressions for unsaturated fractured rocks. Numerical examples show that both models can match reasonably the simulated saturation relations. |
publisher |
CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa |
publishDate |
2011 |
url |
https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/51 |
work_keys_str_mv |
AT monachesileonardo unmetodonumericoparalaobtencionderelacionesconstitutivasenrocasfracturadas AT guarracinoluis unmetodonumericoparalaobtencionderelacionesconstitutivasenrocasfracturadas |
first_indexed |
2023-05-18T23:05:37Z |
last_indexed |
2023-05-18T23:05:37Z |
_version_ |
1766275035827273728 |