Sixth IUTAM Symposium on Laminar-Turbulent Transition

1. Front Matter

   Pages I-XXII

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2. LAMINAR SEPARATION BUBBLES

   • M. Gaster

   Pages 1-13

3. TRANSIENT GROWTH WITH APPLICATION BYPASS TRANSITION TO

   • D.S. Henningson

   Pages 15-24

4. THE ROLE OF EXTERNAL DISTURBANCES INLAMINAR-TURBULENT TRANSITION

   • Xuesong Wu

   Pages 25-35

5. MODELING THE EFFECTS OF STEPS ON BOUNDARY-LAYER TRANSITION

   • J.D. Crouch, V.S. Kosorygin, L.L. Ng

   Pages 37-44

6. RECENT OBSERVATIONS OF THE TRANSITION TO TURBULENCE IN A PIPE

   • T. Mullin, J. Peixinho

   Pages 45-55

7. LOCALISED INSTABILITY IN UNSTEADY SEPARATION BUBBLES

   • Jaywant H. Arakeri, S.P. Das, Usha Srinivasan

   Pages 57-70

8. INTERACTION OF SEPARATION AND TRANSITION IN BOUNDARY LAYERS: DIRECT NUMERICAL SIMULATIONS

   • Hermann F. Fasel, Dieter Postl

   Pages 71-88

9. ON FUNDAMENTAL INSTABILITY MECHANISMS OF NOMINALLY 2-D SEPARATION BUBBLES

   • M. Simens, L. González, V. Theofilis, R. Gómez-Blanco

   Pages 89-95

10. A NEW STABILITY APPROACH FOR THE FLOW INDUCED BY WALL INJECTION

    • G. Casalis, F. Chedevergne, Th. Feraille, G. Avalon

    Pages 97-102

11. THE PECULIARITIES OF DEVELOPMENT OFFORERUNNERS ON LONGITUDINAL STRUCTURES FRONTS IN THE BOUNDARY LAYER OF A STRAIGHT WING

    • Vasiliy N. Gorev, Mikhail M. Katasonov, Viktor V. Kozlov

    Pages 103-108

12. OBSERVATION OF NONLINEAR TRAVELLING WAVES IN TURBULENT PIPE FLOW

    • Björn Hof, Casimir W.H.van Doorne, Jerry Westerweel, Frans T.M. Nieuwstadt

    Pages 109-114

13. A STRANGE INSTABILITY WITH GROWTH NORMAL TO A BOUNDARY LAYER

    • J.J. Healey

    Pages 115-120

14. NUMERICAL STUDIES OF STREAK INSTABILITY IN BOUNDARY LAYERS

    • Luca Brandt, Carlo Cossu, Dan S. Henningson, Jean-Marc Chomaz, Patrick Huerre

    Pages 121-126

15. A POSSIBLE LINEAR INSTABILITY MECHANISM IN SMALL-SCALE PIPE FLOWS

    • Kirti Chandra Sahu

    Pages 127-132

16. EFFECTS OF STRONG ADVERSE PRESSURE GRADIENTS AND INCIDENT WAKES ON TRANSITION AND CALMING

    • J.P. GOSTELOW, R.L. THOMAS

    Pages 133-138

17. EFFECT OF FREE-STREAM TURBULENCE ON A COMPRESSIBLE LAMINAR BOUNDARY LAYER

    • Pierre Ricco, Xuesong Wu

    Pages 139-144

18. EFFECT OF VISCOSITY STRATIFICATION ON SECONDARY AND NONMODAL INSTABILITIES

    • A. Sameen

    Pages 145-151

19. SPECTRAL ELEMENT STABILITY ANALYSIS OF VORTICAL FLOWS

    • Michael S. Broadhurst, Vassilios Theofilis, Spencer J. Sherwin

    Pages 153-158

20. EXPERIMENTAL STUDY OF RESONANT INTERACTIONS OF INSTABILITYWAVES IN AN AIRFOIL BOUNDARY LAYER

    • D. Sartorius, W. Würz, T. Ries, M. Kloker1, S. Wagner, V.I. Borodulin et al.

    Pages 159-169

The dynamics of transition from laminar to turbulent flow remains to this day a major challenge in theoretical and applied mechanics. A series of IUTAM symposia held over the last twenty five years at well-known Centres of research in the subject - Novosibirsk, Stuttgart, Toulouse, Sendai and Sedona (Arizona) - has proved to be a great catalyst which has given a boost to research and our understanding of the field. At this point of time, the field is changing significantly with several emerging directions. The sixth IUTAM meeting in the series, which was held at the Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India, focused on the progress after the fifth meeting held at Sedona in 1999. The s- posium, which adhered to the IUTAM format of a single session, included seven invited lectures, fifty oral presentations and eight posters. During the course of the symposium, the following became evident. The area of laminar-turbulent transition has progressed considerably since 1999. Better theoretical tools, for handling nonlinearities as well as transient behaviour are now available. This is accompanied by an en- mous increase in the level of sophistication of both experiments and direct numerical simulations. The result has been that our understanding of the early stages of the transition process is now on much firmer footing and we are now able to study many aspects of the later stages of the transition process.

• Turbine
• applied mechanics
• boundary layer
• design
• development
• dynamics
• instability
• mechanics
• mechanisms
• modeling
• simulation
• stability
• turbulence
• turbulent flow
• waves

• Jawaharlal Nehru Centre for Advanced Scientific Research, Engineering Mechanics Unit, Bangalore, India

  Rama Govindarajan

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