ABSTRACT
Wake-structure interactions comprise a number of mechanisms; for example, galloping, flutter and vortex-induced vibrations, and the reader is referred to the excellent book by Naudascher and Rockwell (1994) for a clear description of the different types of flow-induced motion of bodies. In this chapter, we are principally focused on vortex-induced vibrations, or VIV. VIV of structures is of practical interest to many fields of engineering affecting the environment. For example, it can cause vibrations in heat exchanger tubes; it influences the dynamics of riser tubes bringing oil from the seabed to the surface; it is important to the design of civil engineering structures such as bridges and chimney stacks, as well as to the design of marine and land vehicles; it can cause large-amplitude vibrations of tethered structures in the ocean; and also the vibrations of rising or falling bodies. These are a few examples out of a large number of problems where VIV is important. The practical significance of VIV has led to a large number of fundamental studies, most of which are referred to in a comprehensive review paper; Williamson and Govardhan (2004), where further significant reviews and references are listed. The reader is also referred to books by Blevins (1990), Naudascher and Rockwell (1994), and Sumer and Fredsøe (1997). Important new results are presented in a recent brief review by Bearman (2011). Here, we focus on the more recent accomplishments of researchers, especially within the last decade.
