This section describes the implementation of Dean’s stream function in Flexcom. Dean's Stream Theory is first outlined, and then the vessel response to the stream function is described. Each of the three vessel motion options – Multiple Order, Equivalent Airy Wave and Superposition of Harmonics – are discussed in turn.
Stream function theory, a non-linear wave theory related to that of Stokes, was developed by Dean in order to examine fully non-linear waves numerically. Flexcom uses a version of Dean’s stream function known as Fenton’s Fourier series theory to compute the wave kinematics for a given set of wave parameters. This method eliminates the need to use tabular or graphical presentations of the solutions in order to solve the stream function equation and is an efficient and accurate solution method.
•*WAVE-DEANS is used to specify Dean’s Stream regular wave loading.