Dr. William A. Arnold

Dr. William A. Arnold

Title: Associate Lecturer
Department: Civil Engineering
Phone: 330-972-7286
Fax: 330-972-6020



Solid interdisciplinary background including thermohydraulics, fluid dynamics, heat transfer, two-phase flow, nuclear engineering, test development, predictive testing, materials processing, material properties measurements and FEA.  Specific work experience includes pyrolysis, chemical analysis, and system design using fluorocarbon heat transfer fluids; FEA modeling of two-phase flows; analysis of heaters used in two-phase fluid boiling experiments; design and development of processing equipment and experimental facilities; design and analysis of space-based experiment combustion hardware, supercritical water oxidation; the initialization of new projects; development of new material fabrication techniques; combining implementation of experiments, physical models and numerical simulations to address heat transfer problems; the training and management of personnel and projects; and complex theoretical analyses.


Ph.D.   Interdisciplinary Engineering Science

           Clarkson University 1993       4.0 GPA

B.S.     Physics

           University of Akron 1990       3.9 GPA


09/06 – present   Principal Engineer, Thermohydraulics

   Babcock & Wilcox Power Generation Group

- Core thermohydraulic responsibilities center on numerical/analytical analyses, code development, dynamic stability, heat transfer relationships and pressure drop correlations.

- Project include coal-fired, nuclear (mPower™), and solar boilers

- Responsibilities also include team cross-training and student mentoring.

07/03 – present   Ad Hoc Temporary Graduate Faculty Member

   The University of Akron, Department of Civil Engineering

- Developed and initiated UA Nuclear Program.

- Teach nuclear courses.

- Consultant for ZIN Technologies via NASA agreement & funding.

- FEA analysis and experimental design of impacts involved in jet engine blade-out tests and NASA Gas Gun projectile experiments.

- Braided carbon fiber composite aging.

- Design, evaluation, optimization, & fabrication involving both NASA and University of Akron Gas Gun Experiments.

- Impact analyses of space experiments, pressure testing eqpt., etc.

11/07 – 11/09     Adjunct Faculty Member, School of Graduate Studies and Research

   Youngstown State University, Department of Mechanical Engineering

- Industry Committee Member & Research Advisor on graduate thesis.

10/04 – 9/06       Interdisciplinary Engineer/Scientist

09/03 – 10/04     Mechanical/Analyst Engineer

   ZIN Technologies, Inc. (NASA contractor)

- Thermal design, pyrolysis, thermal degradation, and chemical analysis of fluorocarbon fluids.

- Zero Boil-off Tank Experiment science lead for ZIN.  Research included evaluation of the effect of non-condensable gas (PVT).

- Thermal and structural modeling/mechanical design of many space experiments.

- Inventor and Project Lead: Transparent Temperature Control Chamber.  Included design, FEA analysis, and cost estimation.

- Analysis of bulk fluid heaters used in two-phase boiling experiments.

- Material compatibility programs for upcoming 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.

- Cost estimation of experimental and modeling projects.

- Wrote a multitude of proposals to NASA, DOD, USAF and others. Included technical/management outline and cost analysis.

- Mentoring and training of junior engineers and students.

- Waste water purification including aeration of municipal systems and cutting-edge aerospace systems for space-based use.

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
- Performed ground-based experiments to develop the flight shear cell.

8/90 – 5/93         Graduate Research Assistant

Clarkson UniversityNASA 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


Journal Articles

  1. William A. Arnold, Thomas G. Hartman, John McQuillen, “Chemical Characterization and Thermal Stressing Studies of Perfluorohexane Fluids for Space-Based Applications,” Journal of Spacecraft and Rockets, Vol. 44, #1, Jan-Feb 2007.  Also NASA NTRS Document ID: 20060020119.
  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 / NASA Publications

1) Justin D. Littell, Wieslaw K. Binienda, William A. Arnold, Gary D. Roberts and Robert K. Goldberg, “Effect of Microscopic Damage Events on Static and Ballistic Impact Strength of Triaxial Braid Composites,” NASA/TM—2010-216095, March 2010.

2) Gary Roberts, Michael Pereira, Michael Braley, William Arnold, “Design and Testing of Braided Composite Fan Case Materials and Components,” ISABE-2009-1201, ISABE Conference (2009) and NASA Glenn Document ID: 20090022155 & Report Number: E-17015.

3) Littell, Justin D.; Binienda, Wieslaw K.; Arnold, William A.; Roberts, Gary d.; Goldberg, Robert K., “Effect of Microscopic Damage Events on Static and Ballistic Impact Strength of Triaxial Braid Composites,” Document ID: 20090004580; Report Number: E-16844 (2008).

4) Charles R. Ruggeri, Gary D. Roberts, Michael Pereira, Wieslaw K. Binienda, and William A. Arnold, “Composite Panel Impact Testing for Initial Material Screening”, ASCE Earth and Space Conference, Long Beach CA, 2008.

5) Justin D. Littell, Charles R. Ruggeri, Robert K. Goldberg, and Gary D. Roberts, William A. Arnold, and Wieslaw K. Binienda, “An Optical Technique for Measuring Mechanical Properties of Polymer Resin”, SEM Conference, Springfield MA, pp. 294-301, 2007.

6) Jay L. Perry & William A. Arnold, “An Environmental Impact Assessment of Perfluorocarbon Thermal Working Fluid Use On Board Crewed Spacecraft,” SAE paper # 2006-01-2218, ICES Conference (2006).  Also NTRS Document ID: 20060047637.

7) Adam Cankaya and William A. Arnold, “Microgravity Science Glovebox CFD Model for the Zero Boil-Off Tank Experiment” AIAA paper #2006-1336, 44th AIAA Conference (2006).

8) 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.

9) 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.

10) 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).

11) 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).

12) William Arnold, Wieslaw Binienda, and Gary Roberts, “Spring/Hydraulic Accelerated Projectile Experiment (SHAPE),” SEM paper #095, SEM Conference (2005).

13) 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).

14) 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).

15) 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).

16) G. Campbell, N. Dontula, and W. Arnold, “Mixing in a Single Screw Extruder,” Proceedings: Regional PPS (Polymer Processing Society) meeting, Knoxville, TN, 1992.

17) W. A. Arnold, D. A. Jacqmin, R. L. Gaug, A. Chait, “Convection Phenomena in Low-Gravity Processing: The GTE GaAs Space Experiment,” AIAA paper #90-0409, 28th AIAA Conference (1990).

18) 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.

19) 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.


1)      Patent #7,788,965  “Portable friction testing device,” Sept 7, 2010

2)      Patent #6,522,980  “Method and algorithm for predicting leak rates,” Feb 18, 2003

3)      Patent #6,494,076  “Pendulum rolling resistant test,” Dec. 17, 2002

4)      Patent #6,393,897  “Accelerated leakage testing,”  May 28, 2002

5)      Patent #6,330,821  “Method of detecting expansion vessel leakage,” Dec. 18, 2001

6)      Patent #6,233,093  “Temperature control for microscopy,”  May 15, 2001

7)      Trade Secrets:         7 total at The Goodyear Tire & Rubber Company

8)      Invention Disclosures:  7 at ZIN Technologies
                                          2 at The University of Akron