Boundary-Layer Separation: Proceedings of the IUTAM Symposium London, August 26–28, 1986 (IUTAM Symposia)

The IUTAM Symposium on Boundary-Layer Separation, suggested by the UK National Committee of Theoretical and Applied Mechanics and supported by the International Union of Theoretical and Applied Mechanics, was held at University College London on August 26-28, 1986. The proposed theme and scope of the Symposium were designed to help to bring about the necessary interaction between experimentalists, computationalists and theoreticians for the furthering of understanding in this challenging subject. The talks and discussions were aimed at representing the very wide range and application of separating-flow phenomena, which often substantially affect the whole of fluid dynamics at medium to large Reynolds numbers, covering in particular both laminar and turbulent flow, steady or unsteady, two- or three-dimensional, small­ or large-scale, incompressible or compressible, external or internal, from the experimental, computational and theoretical standpoints. It was intended that about 80 scientists would participate in the Symposium, with about 25 talks being delivered, to which poster sessions with 8 contributions were added subsequently. All the speakers and poster presenters were selected by the scientific committee, although two late replacements of speakers were required. Fruitful discussions, well led by the session chairmen, took place formally after each talk and after the poster sessions and informally on other occasions including the social events. The present proceedings of the Symposium appear to reflect much of the current state of experimental, computational and theoretical work and progress in boundary-layer separation. We hope that they provide also ideas, questions and stimulation, in addition to major recent developments. Front Matter....Pages I-XVI Front Matter....Pages 1-1 Steady Viscous Flow Past a Cylinder and a Sphere at High Reynolds Numbers....Pages 3-17 Prediction of Buffeting and Calculation of Unsteady Boundary Layer Separation over Airfoils....Pages 19-35 Observation of Three-dimensional “Separation” in Shock Wave Turbulent Boundary Layer Interactions....Pages 37-55 Structure of Flow in Leading-edge Separation Bubbles....Pages 57-71 Computation of Unsteady Separation Using Lagrangian Procedures....Pages 73-87 Front Matter....Pages 89-89 On Turbulent Boundary-Layer Separation....Pages 91-107 Experiments on Hydrodynamic Instability of Boundary Layers with Separation....Pages 109-130 Front Matter....Pages 131-131 The Brillouin-Villat Condition in the Theory of Separation....Pages 133-147 Velocity Profiles for Two-dimensional Turbulent Separated Flows....Pages 149-162 Analysis of Three-dimensional Separated Flow Using Interacting Boundary-Layer Theory....Pages 163-178 A Review of Two-dimensional Turbulent Separated Flow Calculation Methods....Pages 179-196 A new Interacting Boundary-Layer Formulation for Flows past Bluff Bodies....Pages 197-214 Front Matter....Pages 215-215 A new Asymptotic Theory of Turbulent Boundary Layers and the Turbulent Goldstein Problem....Pages 217-234 Vortex Formation in Unsteady Flow near a Moving Wall....Pages 235-249 Simulation of Separated Flow Past a Bluff Body Using Navier-Stokes Equations....Pages 251-267 Some Features of the Transcritical Boundary Layer Interaction and Separation....Pages 269-293 Front Matter....Pages 295-295 Unsteady Triple-deck Flows Leading to Instabilities....Pages 297-312 Separation and Reattachment near the Leading Edge of a Thin Wing....Pages 313-330 Separating Flow: Small-Scale, Large-Scale, and Nonlinear Unsteady Effects....Pages 331-345 Front Matter....Pages 347-347 Breakdown of Steady and Unsteady Interacting Boundary Layers....Pages 349-362 Front Matter....Pages 347-347 Asymptotic Separation from Slender Cones at Incidence....Pages 363-375 Front Matter....Pages 377-377 Experimental Investigation of Topological Structures in Three-dimensional Separated Flow....Pages 379-381 Experimental Investigation of Three-dimensional Separation on Ellipsoid Bodies at Incidence....Pages 383-385 Three-dimensional Separated Flow Structures....Pages 387-389 Asymptotic Theory of High Reynolds Number Turbulent Flows....Pages 391-393 Nonuniqueness of Triple-deck Solutions for Axisymmetric Supersonic Flow with Separation....Pages 395-397 The Dynamic Interaction Between Dune Shape, Flow Field and Sediment Motion....Pages 399-402 Structure of confined Wakes Behind a Circular Cylinder....Pages 403-405 Low-Rossby-number Flow Past a Circular Cylinder in a Rotating Frame....Pages 407-408 Closing Remarks....Pages 409-412 This book aims to present modern thinking and developments in the theory, computation and experimental measurement of boundary layers, with particular emphasis on separation. Boundary-layer separation is a common occurrence in external and internal fluid flows at medium to high Reynolds numbers, and the understanding of the phenomenon has increased greatly in recent years. This book, bringing together contributions from theoreticians, computationalists and experimentalists, is an attempt to reflect much of the recent progress as well as point out future goals and provide ideas and stimulation. The work covers the effects of incompressibility and compressibility, steadiness and unsteadiness, two - and three - dimensionality, small - and large - scale behaviour, and various theories, computational methods and experimental findings, for laminar, transitional and turbulent separating flows.