Dr.
Michael Kerho
Chief
Aerodynamicist
Education
- BS Aerospace Engineering
The University of Southern California, 1989
- MS Aeronautical and
Astronautical Engineering
The University of Illinois at Urbana-Champaign, 1992
- Ph. D Aeronautical and
Astronautical Engineering
The University of Illinois at Urbana-Champaign, 1995
Experience
Dr. Kerho has an extensive hands-on experimental and
applied aerodynamics background. His
experimental experience encompasses the low speed through transonic flight
regimes and includes test planning, model design and data acquisition, final
reduction, flight correlation, and statistical quality analysis.
Dr. Kerho’s testing experience encompasses tunnel calibration, boundary
layer and transition work, airfoil and aircraft development, and unsteady
testing. He has hands-on experience
with Laser Doppler Velocimetry, electronically scanned pressure systems,
hot-wire and hot-film anemometry systems, strain gage force/moment balance
systems, and flow visualization methods including fluorescent dye and oil
techniques, neutrally buoyant bubble applications, laser techniques, smoke and
tuft methods, and temperature sensitive paint.
In addition to his experimental background, Dr. Kerho has
computational experience with inverse airfoil design codes, 3-D panel, and
overset Navier-Stokes CFD codes encompassing simple 2-D airfoils to full
configuration 3-D aircraft. The
programs Dr. Kerho has been involved in have allowed him to contribute to a wide
range of problems encompassing small aircraft through large transport and
military designs. Beginning in 1989
while at the University of Southern California, Dr. Kerho worked with low
Reynolds number airfoil designs in an experimental study to alleviate the
presence of laminar separation bubbles using sub-boundary layer vortex
generators. While at the University
of Illinois at Urbana-Champaign Dr. Kerho performed extensive experimental and
computational studies of the effects of ice accretion on airfoil and aircraft
aerodynamics and performance under grants from NASA Lewis Research center.
These studies included intensive boundary layer and transition work on
low speed airfoil designs with iced, artificially roughened, and clean
configurations. As a senior
engineer/scientist at McDonnell Douglas/The Boeing Company, Dr. Kerho managed
test campaigns for advanced transport and military aircraft for both subsonic
and transonic flight regimes and performed analytical and experimental
investigations of aircraft from conceptual design through testing.
He performed extensive CFD and wind tunnel to flight correlation studies
and developed statistical data reduction and simulation software.
While at Rolling Hills Research Corporation, Dr. Kerho was been involved
in the Phase I and enhanced pressure recovery NLF research and headed the Phase
II NLF airfoil research. In
addition, he was involved in a Phase II SBIR sponsored by the U.S. Air Force in
active turbulent drag reduction using MEMS.
Currently, Dr. Kerho is the Principal Investigator for a Phase II SBIR
sponsored by NASA Dryden to develop a stagnation point control compliant
trailing-edge NLF airfoil for radically enhanced performance NLF wings, and the
Principle Investigator for a Phase II SBIR sponsored by the Army Research
Laboratory to use robust flow control to alleviate dynamic stall in helicopter
blades.
In addition to his SBIR work, Dr. Kerho has been responsible for
developing several fundamental fluid dynamic experiments for the Rolling Hills
Research Corporation line of water tunnels.
Dr. Kerho is the author of several journal and conference publications.
Dr. Kerho is also an AIAA Associate Fellow, member of the AIAA applied
aerodynamics technical committee, chair of the subcommittee on design, and
reviewer for the AIAA Journal of Aircraft.
Selected
Publications
Kerho, M. F., “Enhanced
Airfoil Design Incorporating Boundary Layer Mixing Devices,” AIAA-2003-0211,
paper presented at the 41st AIAA Aerospace Sciences Meeting and
Exhibit, 6-9 January, 2003, Reno, NV.
Kerho, M. F., “Active
Reduction of Skin Friction Drag Using Low-Speed Streak Control (Invited),”
AIAA 2002-0271, paper presented at the 40th AIAA Aerospace Sciences
Meeting and Exhibit, 14-17 January, 2002, Reno, NV.
Kerho, M. F., Heid, J, Kramer, B, and Ng, T., “Active
Drag Reduction Using Selective Low Rate Suction,” Paper # 2000-4018, 18th
Applied Aerodynamics Conference, Denver, Colorado, 14-17 August 2000.
Kerho, M.F., and Bragg, M.B., “Airfoil Boundary-Layer
Development and Transition with Large Leading-Edge Roughness,” AIAA Journal,
Vol. 35, No. 1, 1997, pp. 75-84.
Kerho, M., Hutcherson, S., Blackwelder, R.F., and Liebeck,
R.H., "Vortex Generators Used To Control Laminar Separation Bubbles,"
AIAA Journal of Aircraft, Vol. 30, No. 3, 1993, pp.315-319.
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Summary