Gloyd Simmons - Department of Mechanical Engineering

Gloyd SimmonsAdjunct Professor

1300 West Park Street
NRRC 117
Phone: 406-496-4327
E-mail: gsimmons@mtech.edu

Biography

Gloyd Simmons is an aerospace engineer with over 35 years of aerospace research experience in industry and 18 years teaching experience as an adjunct professor.  Gloyd received a B.S. degree in 1976 and M.S. degree in 1980, both in aerospace engineering from the University of Texas at Arlington with academic focus in gasdynamics, aerospace propulsion, and magnetohydrodynamic (MHD) energy conversion.

Gloyd spent one summer working at NASA Lewis (now Glenn) Research Center developing what he later called the Equilibrium Augmented Chemical Kinetics Program to trace nitric oxide concentrations in theoretical MHD power production plants and continued this work during the next year for his master’s thesis under contract to NASA.  After graduation, Gloyd worked for the Montana Energy Research and Development Institute (MERDI) performing computational modeling of MHD energy conversion to support Department of Energy (DOE) research at their research facility in Butte, MT.  MHD energy conversion research later evolved into investigating MHD accelerator physics for driving high-Mach number hypersonic wind tunnels.  During 35 years of employment by MERDI and its successor company, MSE-TA, Inc., Gloyd performed computation modeling in MHD, fluid dynamics, heat transfer, and chemistry, was the Lead of the Computational Modeling Group, Air Force Programs Manager, and Chief Engineer of the U.S. Army Hypersonic Weapons Testing, Development, and Support (HWTDS) Program developing advanced hypersonic wind tunnel technologies.

While working in industry, Gloyd also taught Energy Conversion, Heat Transfer, and Advanced Thermodynamics in the Montana Tech General Engineering Department (1992-1997).  He returned to Tech to teach in the General Engineering and Mechanical Engineering Departments (2008 – present) teaching an Intro to Aerospace Propulsion, Rocket Propulsion, Advanced Compressible Flow Fluid Mechanics, and Computational Fluid Dynamics.

Recent Courses Taught

ENGR 5710 Advanced Fluid Mechanics
EMEC 435/535 Rocket Propulsion
EMEC 491 Computational Fluid Dynamics

Research Interests

Computational and experimental research into particle-laden flow in micro-nozzles for Cold Spray Additive Manufacturing and combustion products flow in micro-propulsion nozzles for micro-satellites.

Selected Publications

Radiatively Driven Hypersonic Wind Tunnel (RDHWT)/Magnetohydrodynamic Accelerator Research Into Advanced Hypersonics (MARIAH II) Program Final Report for the Period July 1, 1999 through January 15, 2001, U. S. Air Force Arnold Engineering Development Center Report AEDC-TR-08-13, September 2008, edited by Gloyd A. Simmons.

Simmons, Gloyd A., “A New Rocket-Based Combined Cycle for Reusable Launch Vehicles, U.S. Air Force Small Business Innovation Research Project Phase II Final Report, Report No. AFRL-PR-ED-TR-2005-0031, December 2005.

Lee, Ying-Ming; Simmons, Gloyd A.; Ring, Leon; Macheret, Sergey O.; and Shneider, Mikhail N., MHD Accelerator Performance Predictions and Plans for Experimental Verification, AIAA Paper 2002-3132, 22nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference, St. Louis, MO, June 2002.

Ring, L. E.; Simmons, G. A.; Micheletti, D. A.; Schneider, L. X.; and Costantino, M., RDHWT/MARIAH II Hypersonic Wind Tunnel System Integration Issues, AIAA Paper 2000-2279, 21st AIAA Aerodynamic Measurement Technology and Ground Testing Conference, Denver, CO, June 2000.

Simmons, Gloyd A.; Nelson, Gordon L.; Cambier, Jean-Luc; Macheret, Sergey O.; Shneider, Mikhail N.; Lipinski, Ronald J.; and Reed, Kim W., Electron Beam-Driven MHD for the RDHWT/MARIAH II Hypersonic Wind Tunnel, AIAA Paper 2000-2277, 21st AIAA Aerodynamic Measurement Technology and Ground Testing Conference, Denver, CO, June 2000.

Simmons, G. A.; Nelson, G. L.; Miles, R.; Brown, G.; Barker, P.; Macheret, S.; Costantino, M.; and Lipinski, R., Progress Toward a Radiative and MHD Driven High Enthalpy, High Pressure, Long Duration Test Facility, AIAA Paper 2000-0158, 38th AIAA Aerospace Sciences Meeting, Reno, NV, January 2000.

Laster, Marion, L.; Simmons, Gloyd; Fetterhoff, Thomas; and Jordan, John, A Research Program for the Development of a True Temperature Mach 8-15 Medium Scale Hypersonic Wind Tunnel, AIAA Paper 2000-0157, 38th AIAA Aerospace Sciences Meeting, Reno, NV, January 2000.

Fetterhoff, T.; Laster, M.; and Simmons, G., Roadmap to a MARIAH II Hypersonic Test and Evaluation Facility, Paper IS-231, 14th International Symposium on Airbreathing Engines, International Society for Air Breathing Engines (ISOABE), Florence, Italy, September 1999.

Simmons, Gloyd A., “Magnetohydrodynamic Accelerator Research Into Advanced Hypersonics (MARIAH II)/Radiatively Driven Hypersonic Wind Tunnel (RDHWT) Program Fiscal Year 1998 Annual Report,” ed. U. S. Air Force Report to be published.

Simmons, Gloyd and Nelson, Gordon, Overview of the NASA MARIAH Project and Summary of Technical Results, AIAA Paper 1998-2752, 29th AIAA Plasmadynamics and Lasers Conference, Albuquerque, NM, June 1998.

Simmons, G.; Nelson, G.; and Ossello, C., Parametric Analysis of MHD Accelerator Wind Tunnels for Hypervelocity, Air-Breathing Propulsion Development, AIAA Paper 1998-3135, 34th AIAA Joint Propulsion Conference, Cleveland, OH, July 1998.

Simmons, G.; Nelson, G.; and Ossello, C., Electron Attachment in Seeded Air for Hypervelocity MHD Accelerator Propulsion Wind Tunnel Applications, AIAA Paper 1998-3133, 34th AIAA Joint Propulsion Conference, Cleveland, OH, July 1998.

Baughman, J.A.; Micheletti, D.A.; Nelson, G.L.; and Simmons, G.A., “Magnetohydrodynamic Research Into Advanced Hypersonics (MARIAH) Final Report,” NASA CR-97-206242, Parts 1 and 2, October 1997.

Simmons, G. A.; Nelson, G. L.; and Lee, Y. M., Feasibility Study of Nonequilibrium MHD Accelerator Concept for Hypersonic Propulsion Ground Testing, AIAA Paper 1995-2720, 31st AIAA Joint Propulsion Conference, San Diego, CA, July 1995.

Nelson, G. L. and Simmons, G., Augmentation of Hypersonic Propulsion Test Facilities Using MHD, AIAA Paper 95-1937, 26th AIAA Plasmadynamics and Lasers Conference, San Diego, CA, June 1995.

Simmons, G. A.; Nelson, G. L.; and Lee, Y. M., Analysis of An Unseeded, Nonequilibrium MHD Accelerator Concept for Hypersonic Propulsion Ground Testing Applications, AIAA Paper No. 1992-3994, AIAA 17th Aerospace Ground Testing Conference, Nashville, TN, July 1992.

Simmons, G. A.; Nelson, G. L.; Hiers, R. S.; and Western, A. B., An Unseeded Air MHD Accelerator Concept for High Mach Number Hypersonic Propulsion Testing, AIAA Paper No. 1989-2535, Joint Propulsion Conference, Monterey, CA, July 1989 and 27th Symposium on the Engineering Aspects of Magnetohydrodynamics (SEAM), Reno, NV, June 1989.

Nelson, G. L.; Cott, D. W.; and Simmons, G. A., A Site-Specific Engineering Assessment of a Retrofit MHD Topping Cycle, SEAM, Argonne National Laboratory, Argonne, IL, June 1983.

Simmons, G. A. and Wilson, D. R., Effect of Off-Design Operation of MHD Generators on NOx Chemical Kinetics, AIAA Paper No. 1980-0254, AIAA 18th Aerospace Sciences Meeting, Reno, NV, January 1980.

Simmons, G. A. and Wilson, D. R. "Nitric Oxide Chemical Kinetics in MHD Generators," Proceedings of the Montana Academy of Sciences, Vol. 40, April 1980.

Simmons, G. A., MHD Generator Off-Design Performance and NOx Chemical Kinetics Analysis," NASA CR-165187, June 1980.

Simmons, G. A., A Method and Computer Program to Study the Chemical Kinetic Behavior of Nitrogen Oxides in a Quasi-Equilibrium, Coal-Fired, MHD Channel Flow, Thesis, Master of Science, Aerospace Engineering, December, 1980.