Dr. William A. Arnold
Interdisciplinary Engineer / Scientist
EXPERTISE
Solid background in impact dynamics, structural analysis, materials processing, material
properties measurements, test development, predictive testing, fluid dynamics, and heat
transfer, FEA. Background includes design and analysis of space-based experiment
combustion hardware, supercritical water oxidation, fluorocarbon fluids, pyrolysis and
chemical analysis, FEA modeling of two-phase flows (liquid-solid with interface
tracking); analysis of heaters used in two-phase fluid boiling experiments; design and
development of processing equipment and experimental facilities; the initialization of
new projects; development of new material fabrication techniques; combining
implementation of experiments, physical models and numerical simulations to problems
involving heat, mass and momentum transport; the training and management of personnel
and projects; and complex theoretical analyses.
EDUCATION
Ph.D. Interdisciplinary Engineering Science
Clarkson University 1993
4.0 GPA
B.S. Physics
University of Akron 1990
3.9 GPA
EMPLOYMENT HISTORY
10/04 – present Interdisciplinary Engineer/Scientist
09/03 – 10/04 Mechanical/Analyst Engineer
ZIN Technologies, Inc.
- Thermal and structural modeling/mechanical design of many space
experiments.
- FEA, non-dimensional analyses, & mechanical design of combustion
hardware of space-based and earth-based microgravity combustion
experiments. Areas include flow separation, pyrolysis, mixing
zones, filtration, steady state and transient analyses. Two invention
disclosures submitted.
- Supercritical Water Oxidation experiments and analysis
- Fluorocarbon fluids, pyrolysis, thermal degradation, chemical
analysis.
- Inventor and Project Lead: Transparent Temperature Control
Chamber. Includes design, FEA analysis, and cost estimation.
- Analysis of bulk fluid heaters used in two-phase boiling experiments.
- Material compatibility programs for upcoming space experiments.
- Cost estimation of modeling projects.
- Proposal writing: technical outline and cost analysis
07/03 – present Ad Hoc Temporary Graduate Faculty Member
The University of Akron, Department of Civil Engineering
- Using FEA for analysis and design of impacts involved in jet engine
blade-out tests and NASA Gas Gun projectile experiments.
- Design, evaluation, optimization, & fabrication involving both
NASA and University of Akron Gas Gun Experiments.
- Impact analyses of a multitude of projects including space
experiments, proof pressure testing equipment, etc.
11/96 – 09/03
Senior Research Physicist
The Goodyear Tire & Rubber Company
- Performed fundamental materials science studies.
- Materials database GateKeeper.
- Used FEA to model physical test geometries.
- Wrote FE subroutines & custom solvers.
- Designed experimental apparatuses and measurement techniques.
- Developed predictive testing techniques.
01/00 – 05/02
Senior Lecturer, Part-time Faculty
The University of Akron, Department of Physics
- Taught “Physics For Life Sciences,” at night.
5/93 – 11/96
Research Scientist/Engineer
Case Western Reserve University – Stationed at NASA Lewis Research
Center, Cleveland, OH
Co-investigator directing research for the NASA flight program
DPIMS (Diffusion Processes In Molten Semiconductors). The program
goal was to use the shear cell technique in a space experiment to
measure diffusion coefficients of dopants in semiconductors.
Research highlights:
- Numerically modeled many shear cell experiments to determine
science requirements for the space experiment.
- Developed a technique to fabricate brittle semiconductors.
- Modified and improved the design of an existing shear cell.
- Designed a physical model to simulate the effect of shearing on the
fluid flow in both ground-based and microgravity shear cell
experiments.
- Performed ground-based experiments to develop the flight shear cell.
8/90 – 5/93
Graduate Research Assistant
Clarkson University – NASA Lewis Research Center
(funded by the NASA Graduate Student Researchers Program)
Accomplishments and responsibilities included:
- Designed and build a large centrifuge (6 tons) for processing
semiconductor crystals in high gravity.
- Wrote 4 papers (2 journal articles) and co-authored another.
12/86 – 8/90
Resident Research Associate
NASA Lewis Research Center, Microgravity Materials Science
Laboratory (1 year was spent as a cooperative education student under
Case Western Reserve University consortium, 2.7 years were full-time
under University of Akron cooperative agreement)
Work focused on space experiments, specifically:
- Numerical modeling of phase transitions and fluid flow during
crystal growth.
- Assisted in the development of crystal growth furnace hardware.
- Developed control algorithms used in furnace hardware and in
ground-based material properties testing equipment.
- Performed ground-based fluid flow visualization experiments to
simulate fluid flows and quantify mixing occurring in space
experiments.
PUBLICATIONS
Journal Articles
1. William A. Arnold, Ph.D., Thomas G. Hartman, Ph.D., and John McQuillen,
“Chemical Characterization and Thermal Stressing Studies of Perfluorohexane
Fluids for Space-Based Applications,” submitted to the AIAA Journal of
Spacecraft and Rockets.
2. David H. Matthiesen, Kristy Davidson and William A. Arnold, “Physical
Modeling of the Effect of Shearing on the Concentration Profile,” Journal of the
Electrochemical Society, Vol. 146 (1999).
3. W. R. Wilcox, L. L. Regel, W. A. Arnold, “Convection and segregation during
vertical Bridgman growth with centrifugation,” Journal of the Crystal Growth
(1998).
4. William A. Arnold, David Matthiesen, Robert J. Bennett, Douglas T. Jayne, “An
innovative method for preparing semiconductor charges used in crystal growth and
shear cell diffusion experiments,” Journal of the Crystal Growth (1996).
5. William A. Arnold and David Matthiesen, “Numerical Simulation of the Effect of
Shearing on the concentration Profile in a Shear Cell,” Journal of the
Electrochemical Society (1995).
6. William A. Arnold, Liya L. Regel, William R. Wilcox, “Thermal stability During
Rotation in Space: A Scaling and Numerical Analysis,” Acta Astronautica Vol. 30,
pp. 357-367 (1993) Also IAF paper #92-0913
7. William A Arnold, William R. Wilcox, Frederick Carlson, Liya Regel, and Arnon
Chait, “Transport Modes During Crystal Growth in a Centrifuge,” Journal of
Crystal Growth, Vol. 119, pp. 24-40 (1992)
8. W. A. Arnold, D. A. Jacqmin, R. L. Gaug, A. Chait, “Three-Dimensional Flow
Transport Modes in Directional Solidification During Space Processing,” Journal
of Spacecraft and Rockets, Vol. 28, Num. 2, pp. 238-243 (1991).
9. William A. Arnold, “Heat Transfer Inside Planet Earth: A Numerical Study,”
Journal of Undergraduate Physics, Vol. 9, Num. 2, pp. 47-52 (1991).
Book Publications
1) William A. Arnold and Liya L. Regel, “Thermal Stability and the Suppression of
Convection in a Rotating Fluid on Earth,” Materials Processing in High Gravity,
Plenum Press (1994).
2) Ramnath Derebail, William Arnold, Gary Rosen, Liya L. Regel and William R.
Wilcox, “HIRB – The Centrifuge Facility at Clarkson,” Materials Processing in
High Gravity, Plenum Press (1994).
3) Arnon Chait and William Arnold, “Residual Acceleration Effects in Directional
Solidification Experiments Conducted in Various Low-g Environments,”
Materials Science Forum, Vol. 50, pp. 13-28, Trans Tech Publications,
Switzerland (1989).
Conference Proceedings
1) J. Michael Pereira, Duane M. Revilock, Jr. and William A. Arnold, “Ballistic
Impact Testing of Composite Structures,” paper #13672 to be presented at Earth
and Space 2006.
2) Gary D. Roberts, Timothy D. Averbeck, James D. Dorer, William A. Arnold,
Charles R. Ruggeri, and Charlene M. Dvoracek, “Development of braided
composite materials for structures subject to ballistic impact followed by large
dynamic loads,” paper #13669 to be presented at Earth and Space 2006.
3) Adam C. Cankaya and William A. Arnold, Ph.D., “Microgravity Science
Glovebox CFD Model for the Zero Boil-Off Tank Experiment,” AIAA paper
#2006-1336, 44th AIAA Conference (2006).
4) William Arnold, Wieslaw Binienda, Gary Roberts, J. Michael Pereira, Duane
Revilock, and Tim Schmidt, “Motion of Wedge-Shaped Projectiles During Gas
Gun Impact Tests,” SEM paper #158, SEM Conference (2005).
5) William Arnold, Wieslaw Binienda, and Gary Roberts, “Spring/Hydraulic
Accelerated Projectile Experiment (SHAPE),” SEM paper #095, SEM Conference
(2005).
6) William A. Arnold and David H. Matthiesen and Jason Keith, Numerical
Simulation of Soret Diffusion Effects Using a Shear Cell,” AIAA paper #95-0502,
33rd AIAA Conference (1995).
7) William A. Arnold and David Matthiesen, “Numerical Simulation of Diffusion
Experiments Using a Ground Based Shear Cell,” AIAA paper #94-0797, 32nd
AIAA Conference (1994).
8) William A. Arnold, W. R. Wilcox, L. L. Regel, and B. J. Dunbar, “Centrifuge in
Space Flow Visualization Experiment,” AIAA paper #93-0467, 31st AIAA
Conference (1993).
9) G. Campbell, N. Dontula, and W. Arnold, “Mixing in a Single Screw Extruder,”
Proceedings: Regional PPS (Polymer Processing Society) meeting, Knoxville, TN,
1992.
10) W. A. Arnold, D. A. Jacqmin, R. L. Gaug, A. Chait, “Convection Phenomena in
Low-Gravity Processing: The GTE GaAs Space Experiment,” AIAA paper #900409, 28th AIAA Conference (1990).
11) S. A. Gokoglu, W. A. Arnold, P. Tsui, A. Chait, “Prediction of 2-D Convection
Effects and Deposition Rates in a Reactor Configured for CVD on Single Fibers,”
Proceedings: ASME annual meeting in San Francisco, CA, December 10-15,
1989.
12) Arnon Chait and William Arnold, “Transient Flow Behavior on Low-g Vehicles:
A Numerical Case Study,” Proceedings: FIDAP Users Conference, FDI Inc.,
Evanston, IL, October 2-4, 1988.
PATENTS & TRADE SECRETS
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Patent #6,522,980 “Method and algorithm for predicting leak rates,” Feb 18, 2003
Patent #6,494,076 “Pendulum rolling resistant test,” Dec. 17, 2002
Patent #6,393,897 “Accelerated leakage testing,” May 28, 2002
Patent #6,330,821 “Method of detecting expansion vessel leakage,” Dec. 18, 2001
Patent #6,233,093 “Temperature control for microscopy,” May 15, 2001
Trade Secrets:
7 total at The Goodyear Tire & Rubber Company
Invention Disclosures: 7 at ZIN Technologies
2 at The University of Akron