Steve Gorrell

Research Topics:

Experimental and Computational Fluid Dynamics, Turbomachinery, Computational Science and Engineering


Dr. Steve Gorrell joined the BYU Mechanical Engineering Department in 2007 following an eighteen year career as an Aerospace Engineer at the Air Force Research Laboratory Propulsion Directorate. Dr. Gorrell is an internationally recognized leader in the use of high performance computing (HPC), hi-fidelity time-accurate CFD, and Particle Image Velocimetry to investigate and understand unsteady flow physics in high performance gas turbine engine fans and compressors.

See Dr. Gorrell's full profile here.

Mark Fernelius


Mark Fernelius is currently pursuing a doctoral degree in mechanical engineering. He received both B.S. and M.S. degrees in mechanical engineering from Brigham Young University. Mark has research interests in the improvement of aircraft propulsion. Currently, he is investigating how to design turbines to be driven by high amplitude pressure pulses. Mark serves as the website lead for the AIAA Pressure Gain Combustion Program Committee. As an undergraduate, he spent two summers as an intern at Wright-Patterson Air Force Base with Innovative Scientific Solutions, Inc. The first summer he measured the operating conditions of a research jet engine and the second summer he characterized propeller performance for engine matching for remotely piloted aircraft. Prior to joining the TRL, he was a research assistant in the Compliant Mechanisms Research Lab investigating the use of an off-chip lance as an alternative to the nano-injection technique developed...

Brett Stone


Brett is from Idaho, where he grew up loving the outdoors, sports, and reading. As a husband and new father, he enjoys going with his wife to take their new son to play outdoors, go on adventures, read, and see family. 

What I do:

Brett loves engineering design and developing tools and methods for increasing engineering design team performance.

Ron Spencer


Ron Spencer is currently pursuing a master’s degree in mechanical engineering. He received his B. S. degree in mechanical engineering from Brigham Young University. Ron and his wife have one daughter. His interests include waterskiing, snow skiing, piano, machining, and  woodworking. He and his wife love running together, and enjoy hiking and the outdoors.

Research explanation:

Turbomachinery plays an integral role in propulsion and power generation. These machines are well engineered to operate in their current applications, however, as technology advances, the demand for efficiency and range of operating conditions is escalating. 

Engineers involved with the design of these machines use tools such as Computational Fluid Dynamics (CFD) to create virtual prototypes of these machines. Computer simulations of turbomachinery using CFD enable a study of the physics of the machine as well...

Marshall Petterson


Mechanical engineering research assistant at the Turbomachinery Research Lab, with a passion for fluid mechanics, thermodynamics, energy and all things cutting edge. Current research is focused on Fourier methods applied in CFD to capture unsteady flow behavior in turbomachinery. Position specialties include CFD, turbulence modeling, post processing, Fourier analysis and technical writing.

Currently pursing a Master's degree (M.S.) in Mechanical Engineering at Brigham Young University, Provo. Coursework as a Master's student has been focused on fluid mechanics, PDEs, combustion, CFD, turbulence, compressible flow and advanced thermodynamics.

Technical skills include composites, machining, rapid prototyping and woodworking.

Zac Hill


Tate Fanning


Ivan Yorganson


Matthew Wald


Jaron Ellingson


  • Junior in Mechanical Engineering
  • Computer Science Minor



  • Skiing
  • Flying/Designing Airplanes
  • Hiking