Experimental study and characteristic finite element simulation of solute transport in a cross-fracture
A new method, the characteristic finite element method (CFEM), was developed to simulate solute transport in a cross-fracture. The solution of this mathematical model for solute transport considered that the contribution of convection and dispersion terms was deduced using the single-step, trace-bac...
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doaj-3c493e7089444640829f8478188b5aab2020-11-24T21:59:56ZengElsevierGeoscience Frontiers1674-98712016-11-017696396710.1016/j.gsf.2015.11.001Experimental study and characteristic finite element simulation of solute transport in a cross-fractureLong-fei Chen0Yong Huang1Civil Engineering Department of Chongqing Three Gorges College, Wanzhou 404000, ChinaSchool of Earth Sciences and Engineering, Hohai University, Nanjing 210098, ChinaA new method, the characteristic finite element method (CFEM), was developed to simulate solute transport in a cross-fracture. The solution of this mathematical model for solute transport considered that the contribution of convection and dispersion terms was deduced using the single-step, trace-back method and routine finite element method (FEM). Also, experimental models were designed to verify the reliability and validity of the CFEM. Results showed that experimental data from a single fracture model agreed with numerical simulations obtained from the use of the CFEM. However, routine FEM caused numerical oscillation and dispersion during the calculation of solute concentration. Furthermore, in this cross-fracture model, CFEM simulation results predicted that the arrival time of concentration peak values decreased with increasing flux. Also, the second concentration peak value was obvious with the decrease of flux, which may have resulted from the convergence of solute concentrations from main, and branch, fractures.http://www.sciencedirect.com/science/article/pii/S1674987115001279Solute transportCross-fractureCFEMDispersion |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Long-fei Chen Yong Huang |
spellingShingle |
Long-fei Chen Yong Huang Experimental study and characteristic finite element simulation of solute transport in a cross-fracture Geoscience Frontiers Solute transport Cross-fracture CFEM Dispersion |
author_facet |
Long-fei Chen Yong Huang |
author_sort |
Long-fei Chen |
title |
Experimental study and characteristic finite element simulation of solute transport in a cross-fracture |
title_short |
Experimental study and characteristic finite element simulation of solute transport in a cross-fracture |
title_full |
Experimental study and characteristic finite element simulation of solute transport in a cross-fracture |
title_fullStr |
Experimental study and characteristic finite element simulation of solute transport in a cross-fracture |
title_full_unstemmed |
Experimental study and characteristic finite element simulation of solute transport in a cross-fracture |
title_sort |
experimental study and characteristic finite element simulation of solute transport in a cross-fracture |
publisher |
Elsevier |
series |
Geoscience Frontiers |
issn |
1674-9871 |
publishDate |
2016-11-01 |
description |
A new method, the characteristic finite element method (CFEM), was developed to simulate solute transport in a cross-fracture. The solution of this mathematical model for solute transport considered that the contribution of convection and dispersion terms was deduced using the single-step, trace-back method and routine finite element method (FEM). Also, experimental models were designed to verify the reliability and validity of the CFEM. Results showed that experimental data from a single fracture model agreed with numerical simulations obtained from the use of the CFEM. However, routine FEM caused numerical oscillation and dispersion during the calculation of solute concentration. Furthermore, in this cross-fracture model, CFEM simulation results predicted that the arrival time of concentration peak values decreased with increasing flux. Also, the second concentration peak value was obvious with the decrease of flux, which may have resulted from the convergence of solute concentrations from main, and branch, fractures. |
topic |
Solute transport Cross-fracture CFEM Dispersion |
url |
http://www.sciencedirect.com/science/article/pii/S1674987115001279 |
work_keys_str_mv |
AT longfeichen experimentalstudyandcharacteristicfiniteelementsimulationofsolutetransportinacrossfracture AT yonghuang experimentalstudyandcharacteristicfiniteelementsimulationofsolutetransportinacrossfracture |
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1725846435663970304 |