A tiny bubble popping within a liquid seems more fanciful than traumatic. But millions of popping vapor bubbles can cause significant damage to rigid structures like boat propellers or bridge supports ...
Cavitation is essentially a wild bit of physics that turns water — a ship's best friend — into a weapon with a massive destructive potential. It can happen around a ship's propeller and can eat ...
The Kiel University of Applied Sciences (HAW Kiel) has started a research project dedicated to a problem that research has been grappling with for almost 20 years: the low-frequency underwater sound ...
Figure 1: Cavitation pattern on the propeller of the research catamaran Frans Hendrik Lafeber Figure 2: Noise map of the Dutch and German EEZ’s in the N. Sea. As underwater radiated noise levels in ...
Oscar Propulsion Limited and the University of Strathclyde have come up with a way to reduce underwater radiated noise from ship propellers. According to Oscar Propulsion, its patented PressurePores ...
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Why Propeller Blade Count Is a Compromise, Cavitation, Efficiency, and the Olympic's Swapped Screws
More blades mean more power and smoother sailing, but they also mean slower top speeds and lost efficiency. The story of why the Olympic kept changing its center propeller turns out to be a perfect ...
Combination of carbon, glass and epoxy resin produces a strong replacement for nickel/aluminum/bronze metal, the current propeller standard. Damage-tolerant reinforcing fabric strengthens highly ...
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