CFD casts new light on transom stern design

Today most motor yachts, ferries and container ships are designed with a wide transom stern. Transom stern design can have a large effect on fuel consumption because an unsuitable design will generate transverse waves that are detrimental to resistance. Model experiments are normally used to optimise the stern lines and any trim wedges, interceptors or ducktails. But now MARIN's viscous-flow solver PARNASSOS provides new insight into the physics and scale effects.