Presented by Dr. Richard Pattenden, QinetiQ
Fluid-structure interactions impact on ship performance and structural integrity in a number of ways. When it comes to propellers, the unsteady loading due to non-uniformity in the wake and vortex shedding give rise to vibrations which have adverse effects on radiated noise, passenger comfort and structural fatigue. Understanding the physical mechanisms involved is key to minimising these effects. This lecture will discuss developments in numerical simulations to predict these phenomena and how these might be used to improve the design and operation of ships and propellers.