| "Film Cooling
Science & Technology for Gas Turbines Workshop"
Co-Sponsored by the von Karman Institute for Fluid Dynamics (VKI)
Sunday, June 7, 2009
8:00 a.m. – 5:30 p.m.
World Marriott Resort & Convention Center
Orlando, Florida
IGTI is honored to be co-sponsoring this workshop with the von Karman Institute for Fluid Dynamics, a non-profit international educational and scientific organization, hosting three departments (aeronautics and aerospace, environmental and applied fluid dynamics, and turbomachinery & propulsion).
Overview and Objective
The objective of this workshop is to present the state-of-the-art in both
experimental knowledge and CFD-based computational predictions concerning
gas turbine film cooling. The course will begin with an overview of turbine
engine design practices and applications for film cooling, including related
aspects of film cooling inspection, manufacturing, and repair. A significant
portion of the course will be devoted to comprehensive reviews concerning
the fundamentals of jet injection and mixing, the various key parametric
effects and results for adiabatic effectiveness, heat transfer coefficients
and discharge coefficients. Strategies for computational predictions of
film cooling will be presented, including RANS modeling, turbulence model
capabilities and limitations, and emerging methods such as large and detached
eddy simulations (LES & DES), and direct numerical simulations (DNS).
How will participants benefit from attending this course?
Participants will gain an understanding of why film cooling is so important
to turbine design, why it is difficult to employ efficiently, and the
wealth and dearth of design information supporting the technology. Recommendations
of best practices for modeling film cooling and advanced simulation issues,
such as modeling roughness, inlet turbulence etc., will be addressed.
After completing the course the participants should have an:
- Understanding of the fundamentals, real limitations, and range of
actual applied data.
- Insight into why certain designs work and others do not; better focus
for future designs; Enable development of film cooling designs to improve
performance for new gas turbine engines.
- Understanding of modeling capabilities, limitations, and expectations/needs.
Improved understanding of best practices in simulating film cooling
flows.
- Understanding of advanced simulation techniques for improved accuracy
and simulating complex features such as inlet turbulence, surface roughness,
wake interactions, etc.
Who Should Attend
The course is aimed at applied thermal-fluid and CFD researchers interested
in gas turbine engine cooling. Course topics may also be relevant for
industry design engineers interested in tools for improved design practices
and new graduate students in the turbomachinery area. Attendees should
have a working knowledge of gas turbine fundamentals and a BS in Engineering.
Faculty
Dr. Sumanta Acharya is currently
the L. R. Daniel Professor of Mechanical Engineering at Louisiana State
University (LSU) and the Director of the Turbine Innovation and Energy
Research (TIER) Center. He completed his PhD from the University of Minnesota
in 1982, and joined LSU the same year. His primary interests are in aero-heat
transfer problems applied to gas turbines. He is an expert in computational
fluid dynamics, and has published nearly 150 journal papers and book chapters
and presented nearly 200 conference papers. His research is currently
funded by NSF, AFOSR, NASA, DOE, and the state of Louisiana.
Dr. Tony Arts is currently
the Head of the Turbomachinery and Propulsion Department at VKI. He holds
a Dr. Sciences Appliquées from the Université Catholique
de Louvain, Belgium. His areas of research include:
- External convective heat transfer and aerodynamics in linear and annular
turbine cascades
- Aero-thermal characteristics of film cooling
- Aero-thermal aspects of internal convection cooling
- Boundary layers
- Stator/rotor interaction and blade/wake interference in transonic
turbines
- Fast response temperature and heat flux measurements
- Liquid crystal thermometry
- Design and improvement of testing facilities
Dr. David Bogard is a Professor
and the John E. Kasch Fellow in Engineering in the Department of Mechanical
Engineering at the University of Texas at Austin. He currently serves
as the Associate Chair for Administration and Research for the department.
Dr. Bogard is also a Fellow of the American Society of Mechanical Engineers.
His research interests include turbulent boundary layer control and gas
turbine cooling, with more than 120 refereed publications in these areas.
Two of these papers were awarded the International Gas Turbine Institute,
Heat Transfer Committee Outstanding Paper Award. Current research projects
are sponsored by ONR, DOE, NASA, and Pratt & Whitney.
Dr. Ron Bunker is a Principal
Engineer at the GE Global Research Center in Niskayuna, NY. He is an internationally
recognized research engineer in the field of Gas Turbine Heat Transfer.
He has been performing and directing research related to all aspects of
turbine hot gas path heat transfer and cooling for the past 24 years.
Dr. Bunker is a Fellow of the American Society of Mechanical Engineers,
a Member of the Board of Directors of the International Gas Turbine Institute,
and Associate Technical Editor for the Journal of Turbomachinery.
Dr. Bunker has been awarded 48 US patents, with 30 more pending, all dealing
with gas turbine and power technologies. Dr. Bunker is also the author
of 90 technical publications and refereed papers, and more than 125 internal
company reports.
Course Schedule
Sunday, June 7
8:00 a.m. to 5:30 p.m. |
| 8:00 a.m. – 10:00 a.m. |
Turbine Film Cooling Design
Instructor: Ron Bunker,
GE Global Research Center
|
| 10:00 a.m. – 10:15 a.m. |
Coffee Break |
| 10:15 a.m. – 12:15 p.m. |
Fundamental Physics on Basic Flow Field
Interaction
Instructor: Tony Arts,
VKI
|
| 12:15 p.m. – 1:15 p.m |
Group Lunch |
| 1:15 p.m. – 3:15 p.m. |
Main Parameter Effects on Adiabatic Effectiveness
and Heat Transfer
Instructor: David
Bogard, University of Texas at Austin
|
| 3:15 p.m. – 3:30 p.m. |
Coffee Break |
| 3:30 p.m. – 5:30 p.m. |
Computational Methods & Models for
Film Cooling
Computational Methods for Film Cooling Including Sources of Modeling
and Solution Uncertainties, Computational Issues, Geometry &
Grids, Boundary Conditions, RANS & Turbulence modeling and LES,
DES, and DNS.
Instructor: Sumanta
Acharya, Louisiana State University
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