Environmental Loading-Waves and Currents

Abstract

This chapter is devoted to the formulation of the distributed transverse fluid load f (X, t) in an ocean environment. An offshore structure in an ocean environment is subjected to loadings due to wind, current, and waves. The Morison equation is used to model the in-plane fluid force. Random waves are modeled using the Airy linear wave theory and the Pierson-Moskowitz spectrum. A sample time history is generated using Borgman’s method. The out-of-plane fluid force due to vortex shedding is modeled as a simple sinusoid.