Postdoctoral Researcher at Lawrence Livermore National Laboratory
- San Francisco Bay Area
Geoffrey Oxberry's Overview
- Graduate Student at Massachusetts Institute of Technology
- CSGF Practicum Intern at Sandia National Laboratories
- Intern in Process Dynamics and Control Group at DuPont
- Undergraduate Research Assistant at University of Delaware
Geoffrey Oxberry's Summary
Chemical engineer with research experience in model reduction, computational fluid mechanics and chemical kinetics. Familiar with numerical methods, particularly in optimization and ordinary differential equations. Also familiar with C, C++, FORTRAN, MATLAB, and Python. Basic understanding of algorithms & data structures. Interested in data science and software development.
Specialties: Optimization methods, model reduction, chemical kinetics.
Geoffrey Oxberry's Experience
Postdoctoral Researcher, Engineering
Government Agency; 5001-10,000 employees; Research industry
November 2012 – Present (1 year 11 months) Livermore, CA
Developed adaptive proper orthogonal decomposition (POD) methods that yield reduced order models with 10x fewer equations than conventional POD methods. Currently working on finite element models and PDE-constrained optimization for battery applications.
Volunteer Pro Tempore Moderator, Computational Science Stack Exchange
Privately Held; 51-200 employees; Internet industry
December 2011 – Present (2 years 10 months)
Moderator and curator of Computational Science Stack Exchange (http://scicomp.stackexchange.com/). Helped grow community from a few hundred users to over 2,300 users (and counting, as of 12/16/2012). Voted on questions, answered and asked questions. Edited both questions and answers. Resolved disputes between users. Encouraged users to edit questions and answers for clarity and usefulness.
Educational Institution; 5001-10,000 employees; Higher Education industry
August 2006 – September 2012 (6 years 2 months) Cambridge, MA
Thesis: Global Error Bounds on Model Reduction in Combustion
Developed theory to unify many model reduction methods used both within and outside of combustion into a single formalism. Used that formalism to prove global error bounds on solutions of reduced order models. Also published paper using mixed-integer programming and operations research methods to create an algorithm for model reduction in combustion. Implementation in Python can be found on http://github.com/goxberry/ChemReduce.
CSGF Practicum Intern
Government Agency; 5001-10,000 employees; Defense & Space industry
June 2008 – August 2008 (3 months)
Worked as a research assistant under Dr. Bert Debusschere and Dr. Habib Najm on combustion modeling using polynomial chaos expansions.
Intern in Process Dynamics and Control Group
Public Company; 10,001+ employees; DD; Chemicals industry
June 2006 – August 2006 (3 months)
Worked under Dr. Bob Cox to fit equation of state parameters to polymer-solvent systems. Also developed an algorithm to determine one of pressure, density, or temperature, given data for the other two state variables.
Undergraduate Research Assistant
Educational Institution; 1001-5000 employees; Higher Education industry
June 2003 – August 2006 (3 years 3 months)
Created data compression and processing routines using FORTRAN90, FFTW libraries, LAPACK libraries, and simple Perl scripts. Characterized coherent structures in both Newtonian and non-Newtonian turbulent flows by analyzing direct numerical simulation data from a computational fluid dynamics code.
Geoffrey Oxberry's Certifications
Engineer In Training
- Delaware Association of Professional Engineers
- License 826
- April 2006
Geoffrey Oxberry's Projects
Team Members: Geoffrey Oxberry
- July 2012 to Present
Reimplemented the algorithms from:
1. B. Bhattacharjee, D. A. Schwer, P. I. Barton, and W. H. Green. Optimally-reduced kinetic models: reaction elimination in large-scale kinetic mechanisms. Combustion and Flame, 135: 191-208, 2003.
2. A. Mitsos, G. M. Oxberry, P. I. Barton, and W. H. Green. Optimal automatic reaction and species elimination in kinetic mechanisms. Combustion and Flame, 155: 118-132, 2008.
in Python in order to make both papers more reproducible, and disseminate the research in both papers more widely by providing a permissively license open source implementation.
Geoffrey Oxberry's Languages
Geoffrey Oxberry's Skills & Expertise
- Numerical Analysis
- Numerical Simulation
- Operations Research
- Linear Programming
- Nonlinear programming
- Mixed-integer programming
- Global Optimization
- Real Analysis
- Functional Analysis
- Abstract Algebra
- Unit Testing
- Ordinary Differential Equations
- Numerical Linear Algebra
- Microsoft Office
- HTML 5
- Linear Algebra
Geoffrey Oxberry's Education
PhD, Chemical Engineering
2006 – 2012
BChE, Chemical Engineering
2002 – 2006
Graduated summa cum laude, ranked 1/52 in graduating class in major.
Activities and Societies: Tau Beta Pi, Academic Competition Club, Resident Assistant (2003-2004)
MChE, Chemical Engineering
2002 – 2006
Graduated with combined bachelors and masters in four years or fewer. One of a handful of students to do so since 1970.
Geoffrey Oxberry's Additional Information
Data science, software development, mathematics, physics, volleyball, ultimate, soccer.
- Groups and Associations:
SIAM, AIChE, Tau Beta Pi
- Honors and Awards:
Dean's List (all 8 semesters)
University of Delaware Scholar Award, 2002-2006
General Honors Award, 2004
Chemical Engineering Industrial Sponsors Award, 2004
National Dean's List Nominee (2004-2005)
Amerada Hess Corporation Award, 2005
Barry M. Goldwater Scholar, 2005-2006
Mathematical Contest in Modeling, Meritorious Award (top ~10% in world) 2005, 2006
University of Delaware Panel of Distinguished Seniors (College of Engineering Representative), 2006
Tau Beta Pi Fellow, 2006-2007
University of Wisconsin Hougen-Dahlke Fellow (declined), 2006
MIT Robert Haslam Presidential Fellow, 2006-2007
DOE CSGF Fellow, 2007-2011
Contact Geoffrey for:
- career opportunities
- consulting offers
- expertise requests
- reference requests
- getting back in touch
View Geoffrey Oxberry’s full profile to...
- See who you and Geoffrey Oxberry know in common
- Get introduced to Geoffrey Oxberry
- Contact Geoffrey Oxberry directly