TRANSITION STUDY GROUP

1
TRANSITION STUDY GROUP

• A PROPOSAL TO RE-FORMULATE THE GROUP AS A WORKING
  GROUP OF THE AIAA FLUID DYNAMICS TC

2
TSG HISTORY

• BASIC REFERENCE
• Eli Reshotko, AIAA J. Vol. 13, No. 3, pp 261-265
  (1975).
• HISTORY
• INITIATED IN 1970 AS THE NASA TRANSITION STUDY
  GROUP a.k.a. U.S. TRANSITION STUDY GROUP
• CONTINUOUSLY CHAIRED BY ELI RESHOTKO 1970-2000
• SUPPORTED OFF-AND-ON BY NASA AND AFOSR
• MET INFORMALLY 1994-2000

3
ORIGINAL OBJECTIVES

• DEVELOP AND IMPLEMENT A PROGRAM THAT WOULD DO
  SOMETHING CONSTRUCTIVE TOWARD RESOLVING THE MANY
  OBSERVED ANOMALIES IN BOUNDARY-LAYER TRANSITION
  DATA
• FORMULATE SPECIFIC EXPERIMENTAL PROGRAMS
• CAREFUL AND REDUNDANT MEASUREMENTS
• DOCUMENTATION OF ENVIRONMENT
• ELIMINATE FACILITY INDUCED TRANSITION

4
CURRENT MISSION STATEMENT

• DISCUSS AND EXCHANGE INFORMATION ON
  BOUNDARY-LAYER STABILITY AND TRANSITION RESEARCH.
  
• DEVELOP NEW AREAS OF RESEARCH AND DEVELOPMENT.
• ASSESS THE COORDINATION AND FOCUS OF SPONSORED
  RESEARCH EFFORTS.
• PLAN AND IMPLEMENT COOPERATIVE ACTIVITIES TO
  RESOLVE ANOMALIES IN DATA AND BETWEEN DIFFERENT
  COMPUTATIONS.

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ORGANIZATION

• INITIALLY, THE SCOPE WILL BE LIMITED TO
  SUPERSONIC AND HYPERSONIC FLOWS SINCE THESE ARE
  THE PRIMARY PROGRAMS THAT ARE FUNDED IN THE U.S.
• MEET TWICE A YEAR JANUARY (AIAA, RENO) AND JUNE
  (AIAA FLUID DYNAMICS CONFERENCE).

6
ORGANIZATION CONTINUED

• 11 MEMBERS WILL SERVE TERMS OF 3 YEARS WITH
  OTHERS ROTATING IN ON A REGULAR BASIS. THIS GROUP
  WILL SCHEDULE AGENDA ITEMS, SOLICIT INPUT FROM
  THE TRANSITION COMMUNITY, WRITE POSITION PAPERS,
  AND IN GENERAL, CARRY OUT THE MISSION STATEMENT.
• THERE ALWAYS WILL BE A SESSION OPEN TO ALL
  INTERESTED PEOPLE TO DISCUSS PROBLEMS OF
  TRANSITION AND TO GIVE BRIEF REPORTS ON CURRENT
  WORK.

7
STEERING COMMITTEE

• Eli Reshotko, Case-Western Reserve University
• Walt Rutledge, Sandia-Albuquerque
• William Sellers, NASA-Langley
• Steve Walker, AFOSR

8
WORKING GROUP MEMBERS

• Government
• Meelan Choudari, NASA-Langley
• Roger Kimmel, AFRL, Wright-Patterson AFB
• Chris Roy (Secretary), Sandia-Albuquerque

9
WORKING GROUP MEMBERS CONTINUED

• University
• Nd. Chokani, North Carolina State University
• Hermann Fasel, University of Arizona
• William Saric (Chair), Arizona State University
• Steve Schneider, Purdue University
• Xiaolin Zhong, UCLA

10
WORKING GROUP MEMBERS CONTINUED

• International
• Daniel Arnal, ONERA-CERT, Toulouse, France
• Anatoly Maslov, ITAM, Novosibirsk, Russia
• Industry
• Jeffrey Crouch, Boeing, Seattle