Environmental Hydrogeology
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Amir Raoof
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room W108
University of Utrecht
Faculty of Geosciences
Department of Earth Sciences
P.O. Box 80021
3508 TA UTRECHT
Phone (+31) 030 2535039
Email: a.raoof[at]uu[dot]nl
Currently I'm contributing to CATO-2 with the following research projects:
1) Effects of carbon dioxide and brine on wellbore system integrity
2) Effects of reaction and reactive transport on reservoir rock microstructure and properties
Visit PoreFlow, our modeling homepage for pore scale modeling of variably-saturated density-dependent flow and multi-component reactive and adsorptive transport: www.PoreFlow.com
Research Interests
* Reactive and adsorptive solute transport in variably- saturated porous media
* Developing pore-network numerical modeling for upscaling and optimization
* Porosity-permeability evolution under CO2 sequestration conditions
* Relative permeability and solute dispersion under variably-saturated conditions
* Multi-phase flow and solute transport including mass transfer through interfaces
Publications
- Ghareh Mahmoodlu M., Hartog N., Hassanizadeh S.M., Raoof A.,Oxidation of volatile organic vapours in air by solid potassium permanganate, submitted to journal of Chemosphere.
- Nick H.M. , Raoof A., Centler F., Thullner M., Regnier P.A.G.Reactive dispersive contaminant transport in coastal aquifers, submitted to Journal of Contaminant Hydrology.
- Raoof A., Nick H.M., Hassanizadeh S.M., Spiers C.J., PoreFlow: A complex pore-network model for simulation of reactive transport in variably saturated porous media, submitted.
- A. Raoof, Nick H.M., Wolterbeek T.K.T., Spiers C.J., Pore-scale modeling of reactive transport in wellbore cement under CO2 storage conditions, International Journal of Greenhouse Gas Control 2012.
- Raoof A. and Hassanizadeh S. M., Saturation dependent solute dispersivity in porous media; pore-scale processes, accepted for publication in Water Resources Research.
- Vasilyev L., Raoof A., Nordbotten J. M. Effect of mean network coordination number on dispersivity characteristics, Transport in Porous Media, 2012, DOI 10.1007/s11242-012-0054-5.
- Zhang Q., Hassanizadeh S. M., Raoof A., van Genuchten M. Th., Roels S. M., Modeling Virus Transport and Remobilization during Transient Partially Saturated Flow, Vadose Zone Journal,v. 11 no. 2, 2012.
- A. Raoof and SM Hassanizadeh. A new formulation for pore-network modeling of two-phase flow, Water Resources Research, 48(1):W01514, 2012.
- Raoof, A. and S.M. Hassanizadeh, A. Leijnse, Upscaling transport of adsorbing solutes in porous media: pore-network modeling, Vadose Zone Journal, v. 9 no. 3 p. 624-636, 2010b.
- Raoof, A. and S.M. Hassanizadeh, Upscaling Transport of Adsorbing Solutes in Porous Media, Journal of Porous Media 13(5), 395-408, 2010a.
- Raoof, A. and S.M. Hassanizadeh, A new method for generating pore-network models of porous media, DOI 10.1007/s11242-009-9412-3, Transport in Porous Media, 2009.
PhD Book
Reactive/Adsorptive Transport in (Partially-) Saturated Porous Media; from pore scale to core scale
[
download pdf version of PhD book]
Summary:
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.
