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Driven by commercial pressure, the design of modern propulsion systems has relied less on traditional model tests and moved to a combination of computational design by analysis methods coupled with systematic validations tests at both model and full scale (Maritime Research). Shown here is a simulation with STAR-CCM+ on a propeller of a state-of-the-art patrol vessel.
Propeller caviation on a state-of-the-art patrol vessel built to comply with ABS standards for high speed crafts (Maritime Research)
Computational Fluid Dynamics played a major role in the design of a state-of-the-art patrol vessel. Shown here is wave amplitude while the ship is in operation. (Maritime Research)
Computational mesh on the free surface and body of a state-of-the-art patrol vessel (Maritime Research)
Resistance simulation of a Mega Yacht in flat waves and head wind.
Ship aerodynamics and hydrodynamics showing surface pressures and ship wake.
CFD modelling is now routinely used to provide consequence modelling analysis of offshore safety related issues. These include ventilation assessment, gas leak dispersion, helideck environment modelling, smoke and fire modelling. These allow us to predict, quantify and potentially mitigate some of the risk associated with floating and fixed offshore structures.
This image shows an autonomous underwater vehicle (AUV) operating at 15 degrees yaw ("side-slip"). The propeller of the AUV is represented by an momentum source and its output is being highlighted by vectors with a minimum magnitude cutoff above that of freestream flow velocity. The surface scalar shows skin the friction coefficient distribution on the AUV and constant-color streamlines help to illustrate flow structures.
Gas dispersion case solved in STAR-CCM+, superimposed on a sea background.
Laminar-turbulent transition on a common dolphin visualized by turbulent kinetic energy contours and isolines of pressure coefficient at 1 m/s and 1 % turbulence intensity