Subsea Expo

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Stanley Gray Lecture: Seakeeping Behaviour of a Surfaced Underwater Vehicle (IMarEST Webinar)

Stanley Gray Lecture: Seakeeping Behaviour of a Surfaced Underwater Vehicle (IMarEST Webinar)

14 April 2021
Venue: Webinar (10:00)

Underwater Vehicles (UV) like drones and gliders are widely used in the industrial and scientific world, as they allow for easy, safe and cheap access to operations. Submarines also are important in navies as they provide unrivalled operational advantages.

Despite being used at depths, UVs are required to travel on the sea surface for some period of time, where they are subject to waves. However, most of the hydrodynamics knowledge applicable to conventional surface ships is not relevant to UVs due to their particular hull forms. Also, hydrodynamics is of critical importance as it defines the ability of a UV to carry out its missions: hence seakeeping, resistance and manoeuvrability forms the subject of this research.

The research is undertaken through Computational Fluid Dynamics (CFD). It allows to model the fluids around an UV hull, and the variation of some parameters as the speed, the wave height or even the hull shape helps to understand the flow dynamics. But CFD also requires ‘real world’ validation, that are carried out through experimental testing at model scale.

Let’s dive into this fascinating world together!

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