Stephen Dewitt
Computational Scientist
Oak Ridge, Tennessee, United States
Summary
👤
Senior🎓
Top SchoolStephen Dewitt is a computational scientist with a decade of experience building high-performance continuum simulation tools for complex materials systems, currently working at Oak Ridge National Laboratory and as a research investigator with the PRISMS Center at the University of Michigan. He leads development of the open-source PRISMS-PF phase-field framework and applies it to link microstructural phenomena—like precipitate evolution, grain growth, and corrosion—to macroscopic properties in magnesium alloys. His background blends rigorous PhD-level modeling of electrochemical and nanostructured systems with hands-on HPC implementations, including custom parallel Fortran codes and scalable phase-field solvers. Stephen’s work sits at the intersection of computational materials science and additive manufacturing, enabling predictive materials design rather than purely descriptive studies. Colleagues value his ability to translate theoretical multiphysics models into production-grade, community-facing software that accelerates both research and engineering.
10 years of coding experience
4 years of employment as a software developer
Doctor of Philosophy (Ph.D.), Applied Physics, Doctor of Philosophy (Ph.D.), Applied Physics at University of MichiganHigh School, High School at Lansing Catholic Central High School
English
Github Skills (55)
simulation10
fenics10
chemical-engineering10
simulate10
modeling-tool10
pde10
materials-informatics10
heat10
3d-printing10
pde-solver10
partial-differential-equations10
modeling10
modelica10
sundials9
amr8
Programming languages (8)
Github contributions (5)
prisms-center/PRISMS-PF_Training_Materials
Aug 2017 - Aug 2019
Repository for training materials (exercises, slides, etc.) for PRISMS-PF
Contributions:17 commits, 2 PRs, 13 pushes in 1 year 11 months
trainingtraining-materialsprisms
ORNL-MDF/ramen
Mar 2024 - Feb 2025
A Python library for inexpensive analytic and semi-analytic models for process-structure-property calculations for alloys.
Contributions:1 release, 1 review, 7 PRs in 11 months
python
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