Fluid-Structure Interactions

Structures in contact with fluid flow, whether natural or man-made, are inevitably subject to flow-induced forces and flow-induced vibration: from plant leaves to traffic signs and to more substantial structures, such as bridge decks and heat exchanger tubes. Under certain conditions the vibration may be self-excited, and it is usually referred to as an instability. These instabilities and, more specifically, the conditions under which they arise are of great importance to designers and operators of the systems concerned because of the significant potential to cause damage in the short term. Such flow-induced instabilities are the subject of this book. In particular, the flow-induced instabilities treated in this book are associated with cross-flow, that is, flow normal to the long axis of the structure. The book treats a specific set of problems that are fundamentally and technologically important: galloping, vortex-shedding oscillations under lock-in conditions and rain-and-wind-induced vibrations, among others. '... for those with a serious interest in fluid-structure interactions. The individual chapters, written by acknowledged experts in FSI, stand alone so a reader interested in one particular aspect can immediately go to that topic. The book is a welcome addition to those specialising in flow-induced vibration and will be of lasting value.' Journal of Fluids and Structures '... this reviewer would like to strongly recommend that students, engineers and young researchers interested in bluff-body fluid dynamics, get this book by their side. They will learn a lot.' Masaru Matsumoto, Journal of Wind Engineering and Industrial Aerodynamics1. Introduction; 2. Prisms in cross-flow - galloping; 3. Vortex-induced vibration and lock-in; 4. Wake-induced instabilities of pairs and small groups of cylinders; 5. Fluidelastic instabilities in cylinder arrays; 6. Ovalling instabilities of shells in cross-flow; 7. Rain and wind induced vibrations.