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Phillip Justin Wolfram Jr.

Phillip Wolfram

Phone (505) 667-3518


  • Computational Physics and Applied Mathematics
  • Numerical modeling
  • Algorithms
  • Computational fluid dynamics (CFD)
  • Partial differential equations
  • Applied Math
  • Mesh generation
  • Computer and Computational Sciences
  • High performance computing
  • Open MPI development
  • Multicore
  • Earth and Space Sciences
  • Hydrology
  • Climate modeling
  • Oceanography
  • Biogeochemistry
  • Climate, Ocean, and Sea Ice Modeling (COSIM) project
  • Information Science and Technology
  • Visualization
  • Earth and Space Sciences
  • Model calibration


  • Computational physics, modeling, and analysis (Eulerian and Lagrangian)
  • Coastal and ocean science (theory, computational and observational)
  • Computational fluid dynamics (mixing / turbulence)
  • Software engineering / development (algorithms, HPC)
  • Archaeological engineering (retrospective analysis)


Doctor of Philosophy, Stanford University, Stanford, CA 2014 Civil & Environmental Engineering Computational Fluid Dynamics, Environmental Fluid Mechanics and Hydrology Advisors: Oliver Fringer, Stephen Monismith, Derek Fong, and Jeffrey Koseff Dissertation: Secondary Flows and Dispersion in Channel Junctions

Masters of Science, Stanford University, Stanford, CA 2009 Civil & Environmental Engineering Environmental Fluid Mechanics and Hydrology

Bachelor of Science, Colorado School of Mines, Golden, CO 2008 Engineering - mechanics emphasis Guy T. McBride, Jr. Honors Program: Public Affairs for Engineers and Scientists Graduated with Highest Institutional Honors: summa cum laude Outstanding Graduating Senior Award 



LANL Positions

Los Alamos National Laboratory, T3: Fluid Dynamics & Solid Mechanics Scientist

  • Energy Exascale Earth System Model (E3SM) / Accelerated Climate Model for Energy (ACME), 2014-present — Developed and applied online high-performance Lagrangian particle tracking (LIGHT) to study effects of grid resolution, velocity scale, and eddy-mean-flow interactions on fluid diffusivity in idealized ocean basin simulations in the Model for Prediction Across Scales-Ocean (MPAS-O). Designed novel Lagrangian eddy diffusivity diagnostic (J. Phys. Oceanogr. and Ocean Modell.). Designed and contributed to MPAS-Analysis framework to analyze ocean and ice component of output (code releases). Development of high performance hybrid algorithms using Fortran MPI/openMP and python (xarray/dask) for analysis of large datasets with three dimensional visualization via VTK/ParaView.
  • Climate Impacts: Capturing Feedbacks and Adaptation in Coevolving Systems (LDRD Reserve), 2017 – Analysis of inundation with SLOSH and use of ecogeomorphic models and FAST sensitivity analysis to understand shoreline evolution within context of infrastructure adaptation.

  • Adaptation Science for Complex Natural-Engineered Systems (LDRD/DR), 2018 - present – Development of innovative natrual system coastal modeling approaches for use in infrastructure adaptation optimization.

  • Multi-resolution, Multi-scale Modeling for Scalable Macroalgae Production (ARPA-E), 2018 - present – Development of regioanl coastal biogeochemical climatology for use in macroscale algae farming.



National Defense Science & Engineering Graduate Research Fellowship (Office of Naval Research) 2009-2012 Tau Beta Pi Fellowship 2008-2009 John K. Vennard Civil Engineering Fellowship, Stanford University 2008-2009 National ACEC Kennedy/Jenks Consultant Scholarship 2007 CO ACEC Leonard Rice Scholarship for Water and Wastewater Engineering Leo Borasio 2007 Outstanding Junior Award, McBride Honors Program 2007




Peer-reviewed publications
  • E. van Sebille et al. Lagrangian analysis of ocean velocity data: fundamentals and practices. Ocean Modell., 121(1):49-75, 2018.
  • Wolfram, P. J. and T. D. Ringler. Computing eddy-driven effective diffusivity using Lagrangian particles. Ocean Modell., 118:94–106, 2017.
  • Wolfram, P. J. and T. D. Ringler. Quantifying residual, eddy, and mean flow effects on mixing in an idealized circumpolar current. J. of Phys. Oceanogr., 47(8):1897–1920, 2017.
  • T.D. Ringler, J.A. Saenz, Wolfram, P.J., and L. Van Roekel. A thickness-weighted average per- spective of force balance in an idealized circumpolar current. J. Phys. Oceanogr., 47(2):285–302, 2017.
  • F. Samsel, T.L. Turton, Wolfram, P.J., and R. Bujack. Intuitive Colormaps for Environmental Visualization. In K. Rink, A. Middel, D. Zeckzer, and R. Bujack, editors, Workshop on Visualisation in Environmental Sciences (EnvirVis). The Eurographics Association, 2017.
  • Wolfram, P.J., O.B. Fringer, N.E. Monsen, K.T. Gleichauf, D.A. Fong, and S.G. Monismith. Modeling intrajunction dispersion at a tidal river junction. J. Hydraul. Eng., page 04016019, 2016.
  • Wolfram, P. J. and W. F. Lorenz. Longstanding design: Roman engineering of aqueduct arcades. Int. J. Hist. Eng. Technol., 86(1):56–69, 2016.
  • Wolfram, P.J., T.D. Ringler, M.E. Maltrud, D.W. Jacobsen, and M.R. Petersen. Diagnosing isopy- cnal diffusivity in an eddying, idealized mid-latitude ocean basin via Lagrangian In-situ, Global, High-performance particle Tracking (LIGHT). J. Phys. Oceanogr., 45(8):2114–2133, 2015.
  • K.T. Gleichauf, Wolfram, P.J., N.E. Monsen, O.B. Fringer, and S.G. Monismith. Dispersion mechanisms of a tidal river junction in the Sacramento-San Joaquin Delta, California. San Francisco Estuary Watershed Sci., 12, 2014.
  • Wolfram, P.J. and O.B. Fringer. Mitigating horizontal divergence “checker-board” oscillations on unstructured triangular C-grids for nonlinear hydrostatic and nonhydrostatic flows. Ocean Modell., 69(0):64 – 78, 2013.
  • W.F. Lorenz and Wolfram, P.J. Ancient water quality: Roman engineering of the Barbegal Mill. J. Am. Water Works Assn., 104(4), 2012.
  • W.F. Lorenz and Wolfram, P.J. Valley crossings and flood management for ancient Roman aqueduct bridges. J. Irrig. Drain. Eng., 137(12):816–819, 2011.

Other publications / software releases

  • C. Doutriaux and Wolfram, P.J. UV-CDAT/ci-bots: 0.3 release, June 2017.
  • K.J. Evans, C. Zender, L. Van Roekel, M. Branstetter, M. Petersen, M. Veneziani, P.J. Wolfram, S. Mahajan, S. Burrows, and X. Asay-Davis. Acme priority metrics (A-Prime). Technical report, Oak Ridge National Lab.(ORNL), Oak Ridge, TN (United States), 2017.
  • Wolfram, P.J. and T.D. Ringler. Computing Eddy-Driven Effective Diffusivity Using Lagrangian Particles Dataset, November 2016.
  • Wolfram, P.J. Secondary Flows and Dispersion in Channel Junctions. PhD Thesis, Stanford University, 2013.
  • W.F. Lorenz, Wolfram, P.J., and P. Castermans. Water flow to the ancient industrial mill of Barbegal La Burlande Basin (conference proceeding). 3rd IWA Specialized Conference on Water & Wastewater Technologies in Ancient Civilizations, MN60, March 2012. Istambul, Turkey.
  • P.J. Wolfram. Community Tap: Mitigating water scarcity problems in the developing world through community-based Traditional Environmental Knowledge. McBride Honors Thesis, Colorado School of Mines, 2008.
  • W.F. Lorenz and Wolfram, P.J. Arches have no rivals. Roads & Bridges, 45(9):48–50, 2007.
  • W.F. Lorenz and Wolfram, P.J. The millstones of Barbegal. Civil Engineering, 77(6):62–67, 2007.
  • P.J. Wolfram, A. Wayllace, W.J. Likos, and N. Lu. Unsaturated Soil Mechanics Solution Manual. 2007. Companion to Unsaturated Soil Mechanics by Ning Lu and William Likos.