An Analytical Mechanics Framework for Flow-Oscillator Modeling of Vortex-Induced Bluff-Body Oscillations

Description

This self-contained book provides an introduction to the flow-oscillator modeling of vortex-induced bluff-body oscillations. One of the great challenges in engineering science also happens to be one of engineering design – the modeling, analysis and design of vibrating structures driven by fluid motion. The literature on fluid–structure interaction is vast, and it can be said to comprise a large fraction of all papers published in the mechanical sciences. This book focuses on the vortex-induced oscillations of an immersed body, since, although the importance of the subject has long been known, it is only during the past fifty years that there have been concerted efforts to analytically model the general behavior of the coupling between vortex shedding and structural oscillations. At the same time, experimentalists have been gathering data on such interactions in order to help define the various regimes of behavior. This data is critical to our understanding and to those who develop analytical models, as can be seen in this book. The fundamental bases for the modeling developed in this book are the variational principles of analytical dynamics, in particular Hamilton’s principle and Jourdain’s principle, considered great intellectual achievements on par with Newton’s laws of motion. Variational principles have been applied in numerous disciplines, including dynamics, optics and quantum mechanics. Here, we apply variational principles to the development of a framework for the modeling of flow-oscillator models of vortex-induced oscillations. Front Matter ....Pages i-xiv Introduction (Sohrob Mottaghi, Rene Gabbai, Haym Benaroya)....Pages 1-6 Literature in Vortex-Induced Oscillations (Sohrob Mottaghi, Rene Gabbai, Haym Benaroya)....Pages 7-56 Introduction to Analytical Mechanics (Sohrob Mottaghi, Rene Gabbai, Haym Benaroya)....Pages 57-73 Variational Models in Fluid Mechanics (Sohrob Mottaghi, Rene Gabbai, Haym Benaroya)....Pages 75-94 Lagrangian Flow-Oscillator Models (Sohrob Mottaghi, Rene Gabbai, Haym Benaroya)....Pages 95-142 Eulerian and Lagrangian Descriptions (Sohrob Mottaghi, Rene Gabbai, Haym Benaroya)....Pages 143-187 Eulerian Flow-Oscillator Models (Sohrob Mottaghi, Rene Gabbai, Haym Benaroya)....Pages 189-240 Concluding Thoughts (Sohrob Mottaghi, Rene Gabbai, Haym Benaroya)....Pages 241-244 Back Matter ....Pages 245-245