Saturday, 7-Sunday, 8 January 2017, 0800-1700 hrs
This course introduces the basics of shock-wave/boundary-layer interactions (SBLIs). It begins with a very brief revision of fundamental fluid mechanics, in particular gasdynamics and boundary layers. This is followed by an explanation of the different types of SBLIs before describing in more detail the fundamental flow physics of a number of nominally 2-dimensional interactions. The difference between attached and separated interactions is discussed and some basic criteria for the prediction of the separation onset are described.
In the second part of the course 3-dimensional interactions are introduced in greater detail, concentrating on flow topology and key physics (inc. unsteadiness). This is followed by an overview of flow control techniques, distinguishing between boundary-layer and shock control methods and explaining the relative objectives and merits of each approach. Finally, recent research into the influence of corner flows on nominally 2-dimensional interactions is described.
What You Will Learn
- Revision of relevant fluid mechanics knowledge
- Understanding of the different scenarios where SBLIs occur
- Detailed knowledge of fundamental 2- and 3-dimensional SBLIs, including flowfield topology, flow variables, separation and unsteadiness
- An understanding of current state-of-the-art of flow control relevant to SBLI (function, efficacy and potential)
- An understanding of more complex 3-dimensional effects
- Be able to describe the fundamentals of hypersonic flight
Detailed OutlineReview of fundamental physics
Classification of SBLIs
- What is compressibility?
- Basics of Gasdynamics
- Compressible viscous flow
- 3-dimensional separation
- Exercise (basic gasdynamics, basic viscous flow, interpretation of real data)
Fundamentals of 2-dimensional interactions
- 2-dimensional vs 3-dimensional transonic/supersonic/hypersonic
Fundamentals of 3-dimensional interactions Separation
- Basic physics of normal SBLI
- Basic physics of compression corner
- Basic physics of impinging shock interaction
- Laminar vs turbulent and transition effects
- Free interaction theory
- Glancing interaction/sharp fin
- Blunt fin
- Swept Compression corner
- Exercise (contrast viscous/inviscid flowfields, interpret/analyse actual experimental data)
3D/corner effects on ‘2D’ interactions
- Introduction: Types of control (BL- vs Shock-control)
- Boundary layer controls
- Shock controls
- Transonic normal SBLI
- Impinging oblique SBLI
Holger Babinsky graduated with a distinction in Aerospace Engineering from Stuttgart University in Germany. He obtained a PhD in hypersonic aerodynamics from Cranfield University (UK) in 1994. After 18 months as Research Associate at the Shock Wave Research Centre of Tohoku University in Sendai, Japan he returned to the UK to take up a position at the University of Cambridge. He is now Professor of Aerodynamics as well as a Fellow at Magdalene College.
Course notes will be made available about one week prior to the course event. Course registrants will receive an email with detailed instructions on how to access your course notes. Since these notes will not be distributed on site, AIAA and your course instructor highly recommend that you bring your computer with the course notes already downloaded. The recommended book for this course is Shock Wave – Boundary Layer Interactions, H. Babinsky & J.K Harvey, Cambridge University Press.
Course Registration includes full conference participation. For registration information and to register for the course,
Megan Scheidt if you have questions about the course.