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Matthew Sweeney

Postdoctoral Research Associate

Computational Subsurface Hydrology

Matthew Sweeney

Office: TA-3, Bldg 1690, Room 138
Mail Stop: B258
Phone: (505) 665-2306
home page

Research highlight

    Recent work on upscaling properties of discrete fracture networks and porous matrix to 3-D continuum:

 Educational Background/Employment:
  • 2018 - present, Postdoctoral Research Associate, LANL
  • Ph.D. (2018) Geology (Volcanology), University at Buffalo
  • M.S. (2014) Geology (Volcanology), University at Buffalo
  • B.S. (2012) Applied Mathematics, University of Vermont
  • B.S. (2012) Geology, University of Vermont

Research Interests:

  • Computational fluid dynamics with a focus on geological and geophysical flows
  • Eulerian-Eulerian multiphase models
  • Discrete fracture network and discrete fracture matrix modeling
  • Numerical methods for modeling subsurface flow
  • Computational geometry
  • Compressible flow
  • Physical volcanology
  • Numerical methods for tracking moving interfaces

Selected Recent Publications:

    Google Scholar Homepage
  1. Sweeney MR, Hyman JD, Stress effects on flow and transport in three-dimensional fracture networks, Journal of Geophysical Research: Solid Earth, submitted
  2. Sweeney MR, Gable CW, Karra S, Stauffer PH, Pawar RJ, Hyman JD, Upscaled discrete fracture matrix model (UDFM): an octree-refined continuum representation of fractured porous media, Computational Geosciences, accepted
  3. Sweeney MR, Grosso Z, Valentine GA, Topographic controls on a phreatomagmatic maar-diatreme eruption (Holocene Dotsero volcano, Colorado, USA): field and numerical results, Bulletin of Volcanology 80:78 (2018)
  4. Valentine GA, Sweeney MR, Compressible flow phenomena at inception of lateral density currents fed by collapsing gas-particle mixtures, Journal of Geophysical Research: Solid Earth 123 (2018)
  5. Sweeney MR, Valentine GA, Impact zone dynamics of dilute mono- and polydisperse jets and their implications for initial conditions of pyroclastic density currents, Physics of Fluids 29:093304 (2017)
  6. Sweeney MR, Valentine GA, Transport and mixing dynamics from explosions in debris-filled volcanic conduits: Numerical results and implications for maar-diatreme volcanoes, Earth and Planetary Science Letters 425:64-76 (2015)
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