• 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)