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Pore-scale modeling provides opportunities to study transport phenomena in fundamental ways because detailed information is available at the pore scale. This offers the best hope for bridging the traditional gap that exists between pore scale and macro (core) scale description of the process. As a result, consistent upscaling relations can be performed, based on physical processes defined at the appropriate scale. In the present study, we have developed a Multi-Directional Pore Net-work (MDPN) for representing a porous medium. Using MDPN, (partially-) saturated flow and reactive transport processes were simulated in detail by explicitly modeling the interfaces and mass exchange at surfaces. In this way, we could determine the upscaled parameters, and evaluate the limitations and sufficiency of the available analytical equations and macro scale models for prediction of transport behavior of (reactive) solutes. In addition, new approaches and numerical algorithms to accurately simulate flow and transport, under (partially-) saturated conditions, are developed as a FORTRAN 90 modular package. The governing equations are solved applying a fully implicit numerical scheme; however, efficient substitution methods have been applied which made the algorithm computationally effective and appropriate for parallel computations. ISBN: 978-90-3935-627
text Reactive/Adsorptive Transport in (Partially-) Saturated Porous Media from pore scale to core scale Amir Raoof Environmental Hydrogeology Group Utrecht University
Page 1: Reactive/Adsorptive Transport in (P
Page 6 and 7: Promoter: Prof.dr.ir. S.M. Hassaniz
Page 8 and 9: My colleagues and other staff in th
Page 10 and 11: CONTENTS 2.2.3 Connection Matrix .
Page 12 and 13: CONTENTS 5.3.3 Regular hyperbolic p
Page 14 and 15: CONTENTS 8.3.1 Non-adsorptive solut
Page 16 and 17: LIST OF FIGURES 3.6 The relation be
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Page 22 and 23: 1. Introduction . . . . . . . . . .
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2. Generating MultiDirectional Pore
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Published as: Raoof, A. and Hassani
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3.1 Introduction . . . . . . . . .
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3.1 Introduction . . . . . . . . .
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3.2 Theoretical upscaling of adsorp
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3.3 Numerical upscaling of adsorbin
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3.4 Discussion of results . . . . .
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3.5 Conclusion . . . . . . . . . .
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Published as: Raoof, A. and Hassani
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4.1 Introduction . . . . . . . . .
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4.1 Introduction . . . . . . . . .
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4.2 Description of the Pore-Network
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4.3 Simulating flow and transport w
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4.3 Simulating flow and transport w
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4.4 Macro-scale adsorption coeffici
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4.5 Discussion . . . . . . . . . .
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4.5 Discussion . . . . . . . . . .
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4.6 Conclusions . . . . . . . . . .
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Raoof, A. and Hassanizadeh S. M.,
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5.1 Introduction . . . . . . . . .
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5.1 Introduction . . . . . . . . .
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5.2 Network Generation . . . . . .
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5.2 Network Generation . . . . . .
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5.3 Modeling flow in the network .
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5.4 Results . . . . . . . . . . . .
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5.4 Results . . . . . . . . . . . .
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5.4 Results . . . . . . . . . . . .
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5.4 Results . . . . . . . . . . . .
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5.4 Results . . . . . . . . . . . .
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5.4 Results . . . . . . . . . . . .
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5.5 Conclusion Our approach is also
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6. Dispersivity under Partially-Sat
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7. Adsorption under Partially-Satur
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8. Numerical scheme . . . . . . . .
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8. Numerical scheme substituting fo
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9. Summary and Conclusions . . . .
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Appendix A . . . . . . . . . . . .
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Appendix A . . . . . . . . . . . .
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Appendix B . . . . . . . . . . . .
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Appendix C average velocity: ṽ =
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REFERENCES D.F. Yule and W.R. Gardn
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