Oscar Propulsion and the University of Strathclyde develop new technology to reduce underwater noise caused by ship propellers

Source: REV Ocean

The project by the University of Strathclyde and Oscar Propulsion aims to ensure improvements in navigation and a decrease in marine pollution caused by operations. The new technology reduces by up to 14% the emission of underwater noise from the ship’s propellers.

Aiming for further improvements in navigation logistics and even more environmental commitment, the University of Strathclyde joined Oscar Propulsion for a new project, still under development this Thursday (12/01). The initiative seeks new solutions to reduce underwater noise caused by ship propellers, thus reducing marine pollution caused by vessel operations. Organizations have arrived at an efficient technology reducing noise by up to 14%, but intend to expand the numbers.

Partnership of University of Strathclyde and Oscar Propulsion is essential to minimize damage caused by noise from ship propellers

The maritime navigation sector is increasingly seeking new solutions to adapt to the needs of the environment and minimize the impacts caused to marine fauna and flora.


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Among them is the initiative by the University of Strathclyde and Oscar Propulsion for a new technology that reduces by up to 14% the noise caused by ship propellers during navigation.

The system reduces vortex cavitation at the propeller tip by applying a small number of strategically placed holes in the propeller blades.

Thus, the addition of these pressure relief holes results in quieter propellers with less impact on marine fauna.

Lars Eikeland, Maritime Director at Oscar Propulsion, highlighted that underwater noise is still one of the main problems caused by maritime navigation.

However, he points out that, unlike other forms of marine pollution, there are no regulations to minimize the impacts caused by ship propellers.

Thus, a project like that of Oscar Propulsion and the university was necessary to develop a technology capable of reducing this problem.

“Increased noise levels, especially in the low-frequency range, are disorienting marine fauna and disrupting their communication signals, leading to behavioral changes or extinction. Now we have an economical and easy-to-apply solution that prevents this from happening”, reinforced the expert.

New Oscar Propulsion technology allows for a reduction of up to 14% in the noise caused by ship propellers during maritime navigation operations

It took four years of comprehensive computational fluid dynamics (CFD), modeling and cavitation tunnel testing during the development phase of the company’s Oscar Propulsion solution.

The project, in partnership with the University of Strathclyde, brought great results and contributions to global maritime navigation.

This is because, according to the company, the new technology makes it possible to reduce the noise caused by ship propellers in operations by up to 14%.

The results were further verified in tests on the subcavitation propellers on the “Princess Royal”, a 19m research catamaran operated by Newcastle University.

In addition, both organizations conducted CFD Finite Element (FE) propeller stress tests last year, with satisfactory results for the global marine industry.

Thus, companies work towards an even greater environmental commitment in navigation operations.

Get to know Oscar Propulsion

Oscar Propulsion is a technology company focused on ship propulsion projects. In collaboration with leading UK universities and specialist companies, the company develops innovative new technologies and licenses their use to global manufacturers across multiple industries.

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