The prediction of ship hydrodynamic performance can be broken down into the general areas of resistance and propulsion, seakeeping, manoeuvring. Propeller flows and propeller design can be seen as a subtopic of resistance and propulsion, but it is so important and features special techniques that it is treated as a separate topic in its own right. Morgan and Lin (1998) give a good short introduction to the historical development of these techniques to the state of the art in the late 1990s.