jonathanregele.com

EDUCATION                  

University of Colorado, Boulder, CO

Ph.D.   Mechanical Engineering, 2008

Dissertation:     Numerical Modeling of Acoustic Timescale Detonation Initiation Using the Adaptive Wavelet-Collocation Method

M.S.     Physics, 2003

University of California, Irvine, CA

B.S.      Mechanical Engineering, 2001

B.S.      Physics, 2001

Dean’s Honor List

Cum Laude Honors

ACADEMIC HONORS

¨       “Most Outstanding Ph.D. Thesis Award” from the Mechanical Engineering Dept. (2008)

¨       “Best Presentation Award” at CU Boulder GEARS conference (2007)

¨       $1,000 Outstanding Research Promise Fellowship for entry into Mechanical Engineering Department at Boulder (2003)

¨       Graduated UCI with Cum Laude Honors (2001)

¨       Member, Phi Beta Kappa (2001)

¨       Member, Sigma Pi Sigma Physics National Honor Society (2000)

¨       Member, Golden Key National Honor Society (1999)

RESEARCH INTERESTS & ABILITIES

Past research has focused on numerical modeling of acoustic timescale detonation initiation using dynamically adaptive wavelet-collocation schemes and on numerical algorithm development for highly compressible reactive flows. Recent industrial work has focused on experimental, analytical and Computational Fluid Dynamic analyses of annular, can-annular, silo and flameless combustors, pulverized coal furnaces, drop tube reactors and 3D hot gas path analysis of turbine blades and vanes. Current research interests include experimental and numerical analysis in the following areas

¨      Acoustic timescale reactive gasdynamics and detonation initiation

¨      Supersonic and catalytic combustion

¨      Alternative energy sources and energy conversion methods

¨      Electric manipulation of flames and zero gravity combustion

¨      Flame instability, ignition, extinction and flammability limits

¨      Chemical kinetics, pyrolysis, and devolatilization models

¨      Radiative heat transfer and its influence on reaction stability

¨      Fuel cells

EXPERIENCE  

Creative Power Solutions Inc., Fountain Hills, AZ                                  

Engineering Manager (Technology Development)                                         1/2008 – present         

¨       Direct/Manage/Advise all engineering work in the office

¨       First engineer/employee in U.S. office and helped build the company from the ground up

¨       Developed a new convergence technique for troublesome high fidelity steady-state models

¨       Wrote and was involved in the creation of SBIR proposals including pulse detonation attitude control systems and coal gasification concepts.

¨       Assisted in the development and patent of several new gas turbine combustor concepts

¨       Contracted with ASU to create an LES model of a pulverized coal burner to identify the strengths and weaknesses of CPS’ current RANS based models

¨       Used the frozen rotor technique to numerically model the hot gas path flow through the first stage vane and blade and determined the heat flux conditions on the shroud

¨       Performed single burner and entire furnace CFD analysis of client utility heavy fuel oil boiler using RANS based turbulence model with eddy dissipation to optimize flame stability and alleviate ignition issues.

¨       Analyzed both data and with CFD a large silo type gas turbine combustor to determine the root cause of excessive thermal stresses near turbine inlet and baseload power reduction

¨       Experimentally tested unreliable ignition torches for a large 13E2 Alstom gas turbine in order to assess flame speed, equivalence ratio and attachment issues

¨       Numerically modeled a large frame annular combustor and inlet guide vane section to correlate exit temperature and NOx profiles with test rig results

¨       Helped manage and direct the development of a 1-D turbomachinery loss model for the NASA Energy Efficient Engine

¨       Numerically modeled a pulverized coal burner (both single burner and full furnace) and achieved an excellent match between test and model data

University of Colorado, Boulder, Department of Mechanical Engineering           

Prof. Oleg Vasilyev, Multi-Scale Modeling and Simulation Laboratory      

Graduate Research Assistant                                                                                      2003 – 2008

¨       Developed a hyperbolic solver compatible with the Adaptive grid and stencils used by the Adaptive Wavelet-Collocation Method

¨       Tested the method with many benchmark problems including: scalar linear and non-linear advection problems, shock-tube problems, Richtmyer-Meshkov instability, shock-bubble interactions and ZND detonation waves

¨       Implemented correct adiabatic reflecting wall conditions in conjunction with the artificial viscosity induced by the shock capturing scheme

¨       Validated previous one-dimensional detonation initiation MacCormack scheme results with the newly developed hyperbolic solver.

¨       Performed one-dimensional detonation initiation simulations with various activation energies and pre-exponential factors

¨       Generalized numerical results into fundamental principles and a logical sequence of events that must occur in order for acoustic timescale detonation initiation to be possible.

¨       Extended the one dimensional simulation results and performed a parametric study of one-dimensional simulations using various activation energies and pre-exponential factors.

¨       High resolution two-dimensional numerical simulations of acoustic timescale Deflagration-to-Detonation Transition were performed and demonstrated the similarities between the sequence of events in one and two-dimensional models.

University of Colorado, Boulder, Department of Physics                                             

Prof. John Cary, Center for Integrated Plasma Studies        

Graduate Research Assistant                                                                                      2002 - 2003

¨       Developed object oriented C++ code called VORPAL which solves plasma fluid equations as well as PIC models.

¨       Performed simulations of plasma channel formation and laser pulse focusing inside of plasma channels.

Dept. of Mechanical and Aerospace Engineering, University of California, Irvine

Prof. Derek Dunn-Rankin, Lasers, Flames and Aerosols

Undergraduate Research Assistant                                                                             1999 - 2001    

¨       Wrote finite element analysis numerical methods to model potential fields for electrohydrodynamic atomization and performed experiments in lab to verify the model.

¨       Performed simple molecular dynamic ion wind simulations and experiments

Dept. of Mechanical and Aerospace Engineering, University of California, Irvine 

Prof. Dimitri Papamoschou

Summer Intern                                                                                                                          1998

¨       Built wind tunnel components for jet noise reduction experiments.

¨      Used CNC milling machine to fabricate precise air foil surfaces.

Dept. of Mechanical and Aerospace Engineering, University of California, Irvine,

Prof. Donald Dabdub            

Summer Intern                                                                                                                                                                        1997

¨       Wrote FORTRAN programs that process and display San Joaquin valley pollution particles and compare with modeling results.

INDEPENDENT EXPERIENCE

Pulse Detonation Engine                                                                                                      2006

¨       Used knowledge of Pulse Detonation Engines (PDEs) operation to build an inexpensive experimental engine.

¨       Created cryogenically dynamic fuel injection and ignition systems capable of being fully controlled by a digital micro-controller.

¨       Applied expertise in detonation initiation and combustion fundamentals to troubleshoot combustion ignition and acceleration issues.

Shock Tube/Wave Generator                                                                                  1998 - 2006

¨       Machined an experimental shock tube generator that uses propane and nitrous oxide gases that are pre-pressurized with a polyethylene diaphragm prior to ignition. It can also be used for detonation initiation experiments.

¨       Created a reliable high voltage ignition system to ensure combustion of reactants regardless of the fuel-to-air ratio.

¨       Built a 30A alternating current circuit to rotate a magnet inside of the combustion chamber to induce turbulent mixing of the reactants prior to ignition.

Hybrid Rocket Engine                                                                                              1994 - 1996

¨       Developed a Nitrous Oxide/cardboard hybrid rocket engine while Aerotech Rocketry was developing their own hybrid motor technology. Spoke with Aerotech engineers to obtain practical knowledge that was incorporated into the motor development.

PUBLICATIONS

Articles in Refereed Journals

1.              Regele, J.D. and Vasilyev, O.V., An Adaptive Wavelet-Collocation Method for Shock Computations, International Journal of Computational Fluid Dynamics, 23(7), pp. 503-518, 2009.

2.              Regele, J., Papac, M., Rickard, M., and Dunn-Rankin, D., Effects of Capillary Spacing on EHD Spraying from an Array of Cone Jets, Journal of Aerosol Science, 33, 1471—1479, 2002.

Conference and Symposium Papers (Based on Review of Abstract)

1.              Regele, J.D., Naredi, P., Toqan, M., A Simple Burner Retrofit Opacity Solution for High Aspect Ratio Furnaces, Clearwater Clean Coal Conference, 2009.

2.              Regele, J.D., Kassoy, D., and Vasilyev, O.V., Numerical Modeling of Acoustic Timescale Detonation Initiation, AIAA Paper 2008-1037, 2008.

3.              Kassoy, D., Regele, J.D. and Vasilyev, O.V., Detonation Initiation on the Microsecond Time Scale: Comparative One and Two Dimensional DDT Results Obtained from Adaptive Wavelet-Collocation Numerical Methods, AIAA Paper 2007-986, 2007.

MEETING PRESENTATIONS

1.              Regele, J.D., Vasilyev, O.V., Kassoy, D., Numerical Modeling of Detonation Initiation Using Acoustic Time Scale Heat Deposition, APS Division of Fluid Dynamics, 2007.

2.              Regele, J.D., Vasilyev, O.V., Numerical Modeling of Detonation Initiation Using the Adaptive Wavelet-Collocation Method, GEARS Conference, University of Colorado at Boulder, 2007.

3.              Regele, J.D., Vasilyev, O.V., An Adaptive Wavelet Shock Capturing Scheme for Compressible Inert and Reactive Flows, APS Division of Fluid Dynamics, 2006.

4.              Regele, J.D., Vasilyev, O.V., Dynamically Adaptive Wavelet Collocation Method for Shock Computations, GEARS Conference, University of Colorado at Boulder, 2006.

5.              Regele, J.D., Vasilyev, O.V., Dynamically Adaptive Wavelet Collocation Method for Shock Computations, APS Division of Fluid Dynamics, 2005.

6.              Regele, J.D., Vasilyev, O.V., AdaptiveWavelet-Collocation Scheme for Tracking and Resolving Unstable Structures with the 1-D Hyperbolic Conservation Equations, GEARS Conference, University of Colorado at Boulder, 2005.

TEACHING EXPERIENCE

¨       Sponsored a Master’s student thesis at Arizona State University, “Large Eddy Simulation of a Coal Combustor”

¨       Substitute Lecturing for Computational Methods, MCEN 3030 (Spring 2004, Spring 2005, Spring 2006, Spring 2007), University of Colorado (CU), Boulder.

¨       Substitute Lecturing for Fluid Mechanics, MCEN 3021 (Fall 2003), CU Boulder

¨       Teaching Assistant for General Physics 1, PHYS 1110 (Summer 2002), CU Boulder

¨       Teaching Assistant for Physics Lab, PHYS 1140 (Fall 2001, Spring 2002), CU Boulder

SKILLS              

¨       Operating Systems: Windows, Linux

¨       Software: ANSYS CFX, Centaur, MATLAB, CHEMKIN, Mathematica

¨       Programming languages: FORTRAN, C++, PHP, MySQL, HTML

¨       Trades: Lathe, Milling Machine, CNC Milling Machine, Welding