Multiphase-Dynamics and Mass Transport at different Scales


Contact:  Prof. Dr. Helmut Geistlinger


The influence of pore structure and wettability (i) on the dynamics of the fluid-fluid pattern, (ii) on the geometry of gas-water interface and (iii) on the mass transfer kinetics (evaporation) is investigated at pore scale using X-ray microtomography (µ-CT) and micromodel experiments (high-resolution optics, fluorescence spectroscopy). This provides the experimental basis, to achieve a better understanding and description of multi-phase dynamics depending on pore structure and surface properties at a larger scale. Percolation theory and Universal Scaling laws are used to understand “slow” dynamics and mass transfer kinetics at pore scale. These results will help to quantify multi-phase dynamics at continuum scale (REV-scale) with respect to an effective description of material properties (pressure-saturation relationship, conductivities, phase continuity). The expected results will provide a significant contribution to improve modeling of multi-phase flow in porous media. This applies not only to the flow of water- and gas in soils, but also to gas storage processes for (geo-) technical operations (C-sequestration, soil and groundwater remediation) and to technical applications (e.g. multi-phase flow in fuel cells).

CT: Soil Pore structure
μ-CT: Soil Pore structure.
Micromodel of an irregular Pore Structure
Micromodel of an irregular Pore Structure

Research Objectives/Projects


1. DFG-Project Ge766/8-1 (2016 – 2019)
PhD-student: MSc. Yi Ding
Cooperation with Prof. J. Schmidt, Institute of Soil Sciences, TU Freiberg
Visualization and Modeling of Evaporation using representative 2D-Micromodels and universal Scaling laws
2. BMBF-Project TESTUM (2017 – 2020)
PhD-student: MSc. Bilal Zulficar
Cooperation with Prof. A. Dahmke, Institute of Geochemistry, University Kiel
Experimental Study (μ--CT, Micromodels) on permeability changes caused by Gas-Trapping and temperature-dependent Mobilization
3. DFG-Project Ge766/12-1 (2018 – 2021)
PhD-student: MSc. Saeed Golmohammadi
Cooperation with Prof. M. Amro, Institute of Fluid Mining, TU Freiberg
Investigations of the Universal Scaling Behavior of Residual Gas Phases using μ-CT


Scientists:


  • M.Sc. Yi Ding
  • M.Sc.Bilal Zulfiqar
  • M.Sc. Saeed Golmohammadi

Index:

2019 (2)
2018 (1)
2016 (1)
2015 (4)
2014 (1)
2012 (2)
2011 (1)
2010 (3)
2009 (3)
2008 (4)
2007 (1)
2006 (2)
2005 (3)
2004 (4)
2003 (2)
2002 (8)
2001 (2)
2000 (4)
1999 (2)
1998 (1)
1997 (1)

You could use our publication index for further requests.

2019 (2)

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2018 (1)

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2016 (1)

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2015 (4)

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2014 (1)

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2012 (2)

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2011 (1)

  • Geistlinger, H., (2011):
    Vapor transport in soil: concepts and mathematical description
    In: Saponaro, S., Sezenna, E., Bonomo, L., (eds.)
    Vapor emission to outdoor air and enclosed spaces for human health risk assessment: site characterization, monitoring, and modeling
    Nova Science Publishers, Hauppauge, NY, p. 3 - 37
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2010 (3)

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2009 (3)

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2008 (4)

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2007 (1)

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2006 (2)

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2005 (3)

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2004 (4)

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2003 (2)

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2002 (8)

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2001 (2)

  • Geistlinger, H., Eisermann, D., Lazik, D., Krauss, G., Beckmann, A., (2001):
    Reaktive in situ Gaswände: Säulenexperimente, optische Visualisierung und Prozessmodellierung
    In: Fall, M., (Hrsg.)
    Kontamination aus der Nutzung von Ressourcen: Probleme und Lösungen. Proceedingsband des Geo-Umweltkolloquiums des Graduiertenkollegs "Geowissenschaftliche und Geotechnische Umweltforschung" an der TU Bergakademie Freiberg, Dezember 2001
    Wissenschaftliche Mitteilungen 18
    TU Bergakademie Freiberg, Institut für Geologie, Freiberg, S. 96 - 98
  • Lazik, D., Morgeneyer, B., Geistlinger, H., Betzl, N., Kuschk, P., Münch, C., (2001):
    Lysimetermessplatz zur Simulation des Stickstoffabbaus in Vertikalpflanzenfiltern
    9. Lysimetertagung "Gebietsbilanzen bei unterschiedlicher Landnutzung", Gumpenstein, 24.-25.4.2001
    Bundesanstalt für Alpenländische Landwirtschaft, Gumpenstein, S. 195 - 197
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2000 (4)

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1999 (2)

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1998 (1)

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1997 (1)

  • Geistlinger, H., Christoph, G., Liedl, R., Teutsch, G., Borkert, M., (1997):
    Modellierung und Simulation von Teilprozessen des SAFIRA-Projektes
    In: Weiß, H., Teutsch, G., Daus, B., (Hrsg.)
    Sanierungsforschung in regional kontaminierten Aquiferen (SAFIRA): Bericht zur Machbarkeitsstudie für den Modellstandort Bitterfeld
    UFZ-Bericht 27/1997
    UFZ Leipzig-Halle GmbH, Leipzig, S. 61 - 71
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