In laboratory tests failed to identify the formation of giant waves. The challenge is to convey mathematical models for a scale to generate maps with the prediction of these events and prevent shipwrecks.
Many serious accidents at sea are caused by giant waves, says Norbert Hoffmann, Institute of Mechanical Engineering and Marine Technology, Technical University of Hamburg-Harburg (TUHH). Most do not come to the attention of the general public, but others gain notoriety for the damage they cause.
It was a giant wave that sank the ship containers Munich in 1978, north of the archipelago, with 28 crew on board. In 1984, the impact of a giant wave knocked an oil rig near Canada. In 2002, the victim was the Prestige: the hull was broken and caused an oil spill off the coast of Spain.
Experts estimate that every year, ten ships suffer damage caused by giant waves. Some even sink. To help reduce the risk, scientists from the Technical University of Hamburg-Harburg work to predict the occurrence of these waves.
A team led by Hoffmann wants to describe the formation of these billows through formulas. They rely on the principles of math called non-linear calculations take into account that the waves can undergo mutual influences.
If one finds a strong wind in a specific ocean current, can absorb energy from the waves nearby. "Thus, in a few minutes, all the energy is concentrated in a central point. Form is then a wave that can extraordinarily large, shortly after, returning to move like the other, "says Hoffmann.
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