Numerical Assessment of the Hybrid Approach for Simulating Three-Dimensional Flow and Advective Transport in Fractured Rocks

This study presents a hybrid approach for simulating flow and advective transport dynamics in fractured rocks. The developed hybrid domain (HD) model uses the two-dimensional (2D) triangular mesh for fractures and tetrahedral mesh for the three-dimensional (3D) rock matrix in a simulation domain and...

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Autores principales:	Yun-Chen Yu, I-Hsien Lee, Chuen-Fa Ni, Yu-Hsiang Shen, Cong-Zhang Tong, Yuan-Chieh Wu, Emilie Lo
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	fractured rock hybrid domain advective transport particle tracking Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/5e60e03527554cfc97f0db40072008c2
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spelling	oai:doaj.org-article:5e60e03527554cfc97f0db40072008c22021-11-25T16:38:14ZNumerical Assessment of the Hybrid Approach for Simulating Three-Dimensional Flow and Advective Transport in Fractured Rocks10.3390/app1122107922076-3417https://doaj.org/article/5e60e03527554cfc97f0db40072008c22021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10792https://doaj.org/toc/2076-3417This study presents a hybrid approach for simulating flow and advective transport dynamics in fractured rocks. The developed hybrid domain (HD) model uses the two-dimensional (2D) triangular mesh for fractures and tetrahedral mesh for the three-dimensional (3D) rock matrix in a simulation domain and allows the system of equations to be solved simultaneously. This study also illustrates the HD model with two numerical cases that focus on the flow and advective transport between the fractures and rock matrix. The quantitative assessments are conducted by comparing the HD results with those obtained from the discrete fracture network (DFN) and equivalent continuum porous medium (ECPM) models. Results show that the HD model reproduces the head solutions obtained from the ECPM model in the simulation domain and heads from the DFN model in the fractures in the first case. The particle tracking results show that the mean particle velocity in the HD model can be 7.62 times higher than that obtained from the ECPM mode. In addition, the developed HD model enables detailed calculations of the fluxes at intersections between fractures and cylinder objects in the case and obtains relatively accurate flux along the intersections. The solutions are the key factors to evaluate the sources of contaminant released from the disposal facility.Yun-Chen YuI-Hsien LeeChuen-Fa NiYu-Hsiang ShenCong-Zhang TongYuan-Chieh WuEmilie LoMDPI AGarticlefractured rockhybrid domainadvective transportparticle trackingTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10792, p 10792 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	fractured rock hybrid domain advective transport particle tracking Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	fractured rock hybrid domain advective transport particle tracking Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Yun-Chen Yu I-Hsien Lee Chuen-Fa Ni Yu-Hsiang Shen Cong-Zhang Tong Yuan-Chieh Wu Emilie Lo Numerical Assessment of the Hybrid Approach for Simulating Three-Dimensional Flow and Advective Transport in Fractured Rocks
description	This study presents a hybrid approach for simulating flow and advective transport dynamics in fractured rocks. The developed hybrid domain (HD) model uses the two-dimensional (2D) triangular mesh for fractures and tetrahedral mesh for the three-dimensional (3D) rock matrix in a simulation domain and allows the system of equations to be solved simultaneously. This study also illustrates the HD model with two numerical cases that focus on the flow and advective transport between the fractures and rock matrix. The quantitative assessments are conducted by comparing the HD results with those obtained from the discrete fracture network (DFN) and equivalent continuum porous medium (ECPM) models. Results show that the HD model reproduces the head solutions obtained from the ECPM model in the simulation domain and heads from the DFN model in the fractures in the first case. The particle tracking results show that the mean particle velocity in the HD model can be 7.62 times higher than that obtained from the ECPM mode. In addition, the developed HD model enables detailed calculations of the fluxes at intersections between fractures and cylinder objects in the case and obtains relatively accurate flux along the intersections. The solutions are the key factors to evaluate the sources of contaminant released from the disposal facility.
format	article
author	Yun-Chen Yu I-Hsien Lee Chuen-Fa Ni Yu-Hsiang Shen Cong-Zhang Tong Yuan-Chieh Wu Emilie Lo
author_facet	Yun-Chen Yu I-Hsien Lee Chuen-Fa Ni Yu-Hsiang Shen Cong-Zhang Tong Yuan-Chieh Wu Emilie Lo
author_sort	Yun-Chen Yu
title	Numerical Assessment of the Hybrid Approach for Simulating Three-Dimensional Flow and Advective Transport in Fractured Rocks
title_short	Numerical Assessment of the Hybrid Approach for Simulating Three-Dimensional Flow and Advective Transport in Fractured Rocks
title_full	Numerical Assessment of the Hybrid Approach for Simulating Three-Dimensional Flow and Advective Transport in Fractured Rocks
title_fullStr	Numerical Assessment of the Hybrid Approach for Simulating Three-Dimensional Flow and Advective Transport in Fractured Rocks
title_full_unstemmed	Numerical Assessment of the Hybrid Approach for Simulating Three-Dimensional Flow and Advective Transport in Fractured Rocks
title_sort	numerical assessment of the hybrid approach for simulating three-dimensional flow and advective transport in fractured rocks
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/5e60e03527554cfc97f0db40072008c2
work_keys_str_mv	AT yunchenyu numericalassessmentofthehybridapproachforsimulatingthreedimensionalflowandadvectivetransportinfracturedrocks AT ihsienlee numericalassessmentofthehybridapproachforsimulatingthreedimensionalflowandadvectivetransportinfracturedrocks AT chuenfani numericalassessmentofthehybridapproachforsimulatingthreedimensionalflowandadvectivetransportinfracturedrocks AT yuhsiangshen numericalassessmentofthehybridapproachforsimulatingthreedimensionalflowandadvectivetransportinfracturedrocks AT congzhangtong numericalassessmentofthehybridapproachforsimulatingthreedimensionalflowandadvectivetransportinfracturedrocks AT yuanchiehwu numericalassessmentofthehybridapproachforsimulatingthreedimensionalflowandadvectivetransportinfracturedrocks AT emilielo numericalassessmentofthehybridapproachforsimulatingthreedimensionalflowandadvectivetransportinfracturedrocks
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Numerical Assessment of the Hybrid Approach for Simulating Three-Dimensional Flow and Advective Transport in Fractured Rocks

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