Dynamic Behavior of Tube Bundles with Fluid–Structure Interaction
Daniel Broc · 2022
This chapter focuses on modeling the dynamic behavior of tube bundles with consideration given to fluid–structure interactions. This type of structure is encountered in naval engineering in some heat exchangers, in particular those of steam generators in naval propulsion; their response to an external excitation may be helpful to calculate. In the core of a nuclear reactor, the nuclear fuel is contained in tubes and the heat is evacuated by the coolant. The chapter presents the equations linked to physical models of fluid–structure interaction in the case of a tube bundle immersed in a dense fluid. It presents some validation elements of the homogenization method, with calculations of vibration eigenmodes and temporal responses to an excitation. The chapter then presents two applications of the methods developed: the first example focuses on nuclear engineering, and the second focuses on naval engineering.