CSIRO models 20m rogue waves

The computer modelling helps the researchers see how different types of semi-submersible oil rigs withstand the effects of giant waves in the open ocean.

Rogue waves are rare, extreme events that pose a risk to shipping and offshore structures and can lead to loss of life. They differ from tsunamis, which only grow large when they reach shallow water.

Dr Murray Rudman, CSIRO scientist and keen surfer, said rogue waves were once considered folklore but wave-height-monitoring data has blown that myth out of the water.

‘Rogue waves are huge waves that sometimes seem to come out of nowhere and, in recent years, they’ve been a major topic of scientific research,’ Rudman said.

CSIRO is using fluid-flow mathematics and computer modelling to assist in the sensible and safe design of oil platforms.

Modelling rogue waves’ effects enables researchers to conduct experiments - which would normally involve the use of huge water tanks - more cheaply, accurately and quickly.