Geometric modelling and object-oriented software concepts applied to a heterogeneous fractured network from the Grimsel rock laboratory

Thomas Kalbacher; Ralph Mettier; Chris McDermott; Wenqing Wang; Georg Kosakowski; Takeo Taniguchi; Olaf Kolditz

doi:10.1007/s10596-006-9032-8

Geometric modelling and object-oriented software concepts applied to a heterogeneous fractured network from the Grimsel rock laboratory

Thomas Kalbacher, Ralph Mettier, Chris McDermott, Wenqing Wang, Georg Kosakowski, Takeo Taniguchi, Olaf Kolditz

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

Discrete fracture network simulations are computationally intensive and usually time-consuming to construct and configure. This paper presents a case study with techniques for building a 3D finite element model of an inhomogeneous fracture network for modelling flow and tracer transport, combining deterministic and stochastic information on fracture aperture distributions. The complex intersected fractures represent a challenge for geometrical model design, mesh quality requirements and property allocations. For the integrated and holistic modelling approach, including the application of numerical and analytical simulation techniques, new object-oriented concepts in software engineering are implemented to ensure a resourceful and practicable software environment.

Original language	English
Pages (from-to)	9-26
Number of pages	18
Journal	Computational Geosciences
Volume	11
Issue number	1
DOIs	https://doi.org/10.1007/s10596-006-9032-8
Publication status	Published - Mar 2007
Externally published	Yes

Keywords

Fracture apertures
Fractured network
Geometric modelling
Geostatistics
Mesh quality
Object orientation

ASJC Scopus subject areas

Computer Science Applications
Computers in Earth Sciences
Computational Mathematics
Computational Theory and Mathematics

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10.1007/s10596-006-9032-8

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title = "Geometric modelling and object-oriented software concepts applied to a heterogeneous fractured network from the Grimsel rock laboratory",

abstract = "Discrete fracture network simulations are computationally intensive and usually time-consuming to construct and configure. This paper presents a case study with techniques for building a 3D finite element model of an inhomogeneous fracture network for modelling flow and tracer transport, combining deterministic and stochastic information on fracture aperture distributions. The complex intersected fractures represent a challenge for geometrical model design, mesh quality requirements and property allocations. For the integrated and holistic modelling approach, including the application of numerical and analytical simulation techniques, new object-oriented concepts in software engineering are implemented to ensure a resourceful and practicable software environment.",

keywords = "Fracture apertures, Fractured network, Geometric modelling, Geostatistics, Mesh quality, Object orientation",

author = "Thomas Kalbacher and Ralph Mettier and Chris McDermott and Wenqing Wang and Georg Kosakowski and Takeo Taniguchi and Olaf Kolditz",

note = "Funding Information: Acknowledgements The authors want to particularly thank Nagra in Wettingen, Switzerland (http://nagra.ch, http://www.grimsel.com), and JAEA in Tokai, Japan (http://www.jaea.go.jp), which enabled the access to the cores themselves and provided the dataset from the excavation project as well as the images of the cores. Ralph Mettier thanks Bill Dershowitz and Golder Inc. for providing him with an academic license for their FracXP software package. (http://fracman. golder.com/). The funding of the Deutsche Forschungsgemeinschaft (DFG) for further development of fracture network models under grant (MCD113/1-5) is gratefully acknowledged. Furthermore, we thank the BMBF for funding our developments of coupled numerical models for C:HM transport processes (02C1295)",

year = "2007",

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doi = "10.1007/s10596-006-9032-8",

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AU - Kalbacher, Thomas

AU - Mettier, Ralph

AU - McDermott, Chris

AU - Wang, Wenqing

AU - Kosakowski, Georg

AU - Taniguchi, Takeo

AU - Kolditz, Olaf

N1 - Funding Information: Acknowledgements The authors want to particularly thank Nagra in Wettingen, Switzerland (http://nagra.ch, http://www.grimsel.com), and JAEA in Tokai, Japan (http://www.jaea.go.jp), which enabled the access to the cores themselves and provided the dataset from the excavation project as well as the images of the cores. Ralph Mettier thanks Bill Dershowitz and Golder Inc. for providing him with an academic license for their FracXP software package. (http://fracman. golder.com/). The funding of the Deutsche Forschungsgemeinschaft (DFG) for further development of fracture network models under grant (MCD113/1-5) is gratefully acknowledged. Furthermore, we thank the BMBF for funding our developments of coupled numerical models for C:HM transport processes (02C1295)

PY - 2007/3

Y1 - 2007/3

N2 - Discrete fracture network simulations are computationally intensive and usually time-consuming to construct and configure. This paper presents a case study with techniques for building a 3D finite element model of an inhomogeneous fracture network for modelling flow and tracer transport, combining deterministic and stochastic information on fracture aperture distributions. The complex intersected fractures represent a challenge for geometrical model design, mesh quality requirements and property allocations. For the integrated and holistic modelling approach, including the application of numerical and analytical simulation techniques, new object-oriented concepts in software engineering are implemented to ensure a resourceful and practicable software environment.

AB - Discrete fracture network simulations are computationally intensive and usually time-consuming to construct and configure. This paper presents a case study with techniques for building a 3D finite element model of an inhomogeneous fracture network for modelling flow and tracer transport, combining deterministic and stochastic information on fracture aperture distributions. The complex intersected fractures represent a challenge for geometrical model design, mesh quality requirements and property allocations. For the integrated and holistic modelling approach, including the application of numerical and analytical simulation techniques, new object-oriented concepts in software engineering are implemented to ensure a resourceful and practicable software environment.

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KW - Geostatistics

KW - Mesh quality

KW - Object orientation

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Geometric modelling and object-oriented software concepts applied to a heterogeneous fractured network from the Grimsel rock laboratory

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Keywords

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