Aerodynamics

Building the ship aerodynamics model

Modern-day CFD simulations should be performed in full scale using a sufficient amount of detail. Only with a properly performed and comprehensive set of simulations can the performance of the ship or facility be evaluated. A simulation should be built to provide answers to all required issues, i.e. wind loads, comfort aspects, effluent dispersions, gas safety aspects… Everything can be obtained from one and same simulation!

The simulation of ship aerodynamics replaces or extends and gives a deeper understanding of wind tunnel tests traditionally performed. The wind tunnel test performed with simulation can be similar to traditional methods, and is thus comparable to these. The best performance can anyhow be utilized from the simulation which is done for the full scale vessel, in which the details of interest can be included into the model. The benefits of the full scale simulation are quite clear; this is the only method to investigate the real scale ship performances before its manufactured, find the real wind profile impacts or harbor maneuver conditions, or include the ship velocity relative to the sea to the flow behavior detected in the aerodynamics.

aerodynamics cfd fluid dynamics wind

Wind simulation, MS Spirit of Britain (P&O Ferries), port side bow wind. Once build, the simulation model can be used for many different purposes.