American Institute of Aeronautics and Astronautics (AIAA)
Member, Propellants and Combustion Technical Committee (1979-81, 1989-92)
Chair, Awards Subcommittee, Propellants and Combustion Technical Committee (1990-92)
Member, Fellow Grade Committee (1995, 1996)
American Society of Mechanical Engineers (ASME) - Heat Transfer Division
Member, Committee on Heat Transfer in Energy Systems (1977-82)
Member, Committee on Heat Transfer in Fire and Combustion Systems (1980-);
Charter member
Chair, Committee on Heat Transfer in Fire and Combustion Systems (1989-92)
Member, Committee on Honors and Awards (1992-95)
Combustion Institute
Member, Board of Advisors, Central States Section (1982-85)
Member, Executive Committee, Western States Section (1984-88)
Papers Chair, Western States Section (1987-88)
Member, Executive Committee, Eastern Section (1989-91)
Papers Chair, Eastern Section (1989-91)
Member, Program Subcommittee of the International Symposia (1979- )
Member, Program Advisory Subcommittee, 23rd and 25th International Symposia
Chair, Technical Program Committee, 24th International Symposium
Member, Board of Directors (1992-2004)
Member, Executive Committee (1992- )
Chair, Publications Committee (1994-1999)
Member, Editorial Board (1985-94); Deputy Editor (1997-2000): Combustion and Flame
Vice President and President-Elect (1997-2000)
President (2000-2004)
Honorary Member, Board of Directors (2004-)
Other
Member (1987-2004), Chair (1997-2004), Combustion Science Disciplinary Working Group,
NASA
Member (1997-2004), Microgravity Research Advisory Subcommittee, NASA
Member (1997-2000), Space Station Utilization Advisory Subcommittee, NASA
Director, Air Force Research in Aero Propulsion Technology (1990-94)
Member, Advisory Board, Combustion Research Facilities, Sandia National Laboratories
(2000-2004)
Journal Editorial Services
Member, Editorial Board, Combustion and Flame (1985-94)
Deputy Editor, Combustion and Flame (1997-2002)
Member, Editorial Advisory Board, Combustion Science and Technology (1986-90)
Associate Editor, Combustion Science and Technology (1990-97)
Associate Editor, AIAA Journal (1989-94)
Member, Editorial Advisory Board, Progress in Energy and Combustion Science (1991-
)
Member, Editorial Advisory Board, Journal of Propulsion and Power (2002- )