Partitioned Fluid-Structure Interaction Simulation of Maritime Applications

Zusammenfassung

In this work, the benefits of employing the partitioned approach in fluid-structure interaction simulations are demonstrated in four different examples: Simulations of a floating offshore wind turbine and a wave energy converter are used to analyze dynamic effects and improve the structural design. A multilayered submersible mixer validates the simulations by assessing local strains, thrust, and torque. Finally, an anisotropic ship propeller made of carbon-reinforced polymer is optimized with an evolutionary algorithm based on coupled simulations concerning efficiency, thrust, and cavitation. Contents 1 Introduction 1 1.1 Motivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 State of the art . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 Purpose and scope of this thesis . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Structural mechanics 5 2.1 Balance equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Constitutive equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2.1 Isotropic material modelling . . . . . . . . . . . . . . . . . . . . . . 7 2.2.2 Anisotropi...