My research focuses on the surprising variety of flow patterns we discover in multiphase, granular, and complex fluid flows. We study how large-scale flow patterns emerge from a combination of the microstructure of the fluid, and the viscous, capillary, frictional and gravitational forces acting on the system. Our results provide explanations for naturally occurring phenomena in geophysical flows, and helps optimise engineered processes such as soil remediation, oil and gas recovery, and carbond dioxide cature and storage.

Read more on the Complex Flow Lab webpage.


  1. Ozturk, D., Sandnes, B. A STUDY OF THREE-PHASE FRACTURING IN GRANULAR MEDIA USING HIGH-SPEED IMAGING Journal of Porous Media 22 8 987 1000
  2. Olsen, K., Flekkøy, E., Angheluta, L., Campbell, J., Måløy, K., Sandnes, B., Sandnes, B. Geometric universality and anomalous diffusion in frictional fingers New Journal of Physics 21 6 063020
  3. Eriksen, J., Toussaint, R., Måløy, K., Flekkøy, E., Galland, O., Sandnes, B. Pattern formation of frictional fingers in a gravitational potential Physical Review Fluids 3 1 013801
  4. Campbell, J., Ozturk, D., Sandnes, B., Sandnes, B. Gas-Driven Fracturing of Saturated Granular Media Physical Review Applied 8 6
  5. Dumazer, G., Sandnes, B., Ayaz, M., Måløy, K., Flekkøy, E., Sandnes, B. Self-Structuring of Granular material under Capillary Bulldozing EPJ Web of Conferences 140 09016

See more...


  • EG-169 Environmental Awareness for Engineers

    The module focuses on the environmental impacts of human activity, industry, and energy consumption. With the global population soaring past 7 billion in an increasingly industrialised world, human activity is now affecting energy and material balances on a global scale. The next generation of engineers must appreciate the environmental impacts of current technology in order to engineer better solutions for the future.

  • EG-216 Practical Environmental Chemistry

    This environmental chemistry laboratory module is designed to give relevant experimental experience to environmental engineers. The module aims to develop skills in experiment design, the appropriate use and safe handling of chemicals, the acquisition, processing, error analysis, and interpretation of experimental data; and to develop skills in presentation and communication of experimental and technical information. The practical class consists of an introductory lecture, four environmental engineering 4 hr laboratory based sessions, followed by one poster session, at which each student presents a poster on one of the experiments.

  • EGCM40 Pollutant transport by groundwater flows

    This module focuses on groundwater flow in aquifers, the transport of pollutants by groundwater flows, and the chemical and biological transformation of pollutants in the subsurface.


  • Pattern Formation and flow to Fracture Transitions in Granular and Sheer Thickening Materials (current)

    Other supervisor: Dr Anthony Higgins
    Other supervisor: Dr Bjornar Sandnes
  • Fluid-driven fracturing of saturated granular materials (current)

    Other supervisor: Prof Chenfeng Li
    Other supervisor: Dr Bjornar Sandnes

Career History

Start Date End Date Position Held Location
2012 Present Senior Lecturer Swansea University
2011 2011 Assoc. Prof. Norwegian University of Science and Technology
2008 2011 Fellowship University of Oslo
2007 2011 Visiting Scholar University of Sydney
2008 2011 Honorary Associate Macquarie University, Sydney
2008 2008 Research Fellow Macquarie University
2004 2008 Postdoc University of Oslo

Key Grants and Projects

  • Research grant 2015 - 2017

    “Flowback of proppant materials, National Research Network in Advanced Engineering and Materials (NRN)

  • Research grant 2015

    High speed video system, Engineering Instrument Pool

  • Research grant 2014 - 2016

    “Multiphase fracturing of deformable media”, Engineering and Physical Sciences Research Council (EPSRC)

  • Research grant 2012 - 2015

    “Multiphase frictional fluid flows”, Research Council of Norway

  • Research grant 2012

    Flow instabilities in frictional fluid dynamics, Royal Society

  • Funding award 2012 - 2015

    “Multiphase frictional fluid flows” (CI), RCN

  • Funding award 2008 - 2011

    “Non-equilibrium pattern formation and rheological responses in complex fluids”, RCN

  • Research grant 2007 - 2011

    “Microrheology of nanostructured, soft materials”, Research Council of Norway