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A well-established UK company, based in South East England, specialising in marine engineering, offers its CFD (Computational Fluid Dynamics) technology support and design optimisation to ship building and ship design companies. The company is looking to collaborate with interested partners under an outsourcing agreement or subcontracting within the maritime sector developing wind propulsion technology (WPT).
The company offers a holistic analysis of the benefits of WPT for wind-assisted ship propulsion using rigid wings, sails, kites, Magnus rotors or other novel devices. It has worked with a wide range of sports teams to improve their boats, super yacht makers and also commercial cargo shipping to identify mechanisms to reduce fuel usage and efficiency.
Their CFD methods cover a large variety of flow behaviours and includes free-surface flow, viscous flow, full-scale performance prediction, fluid-structure-interaction and dynamic behaviour.
Main features of simulations
Hydrodynamic simulations at full scale including all appendages, the free surface deformation, the dynamic sailing attitude of the yacht, and complex physical phenomena when present, like transition laminar/turbulent flow, cavitation, ventilation, sprays.
Hydrodynamic simulations are run with multiple degrees of freedom (DOF). i.e. with 6 DOF, fully balancing the yacht with the aerodynamic forces. Motions of the vessel can be simulated for incoming waves of any direction, including surfing down a wave if possible. There are no restrictions on the amplitude of the motion, including capsize event where possible.
Areas where CFD can help:
* Sail, wing, rotor design and coefficients
* Windage and structural wind loads on superstructures
* Hull and appendages performance and optimisation
* Propulsion, propeller selection, fuel consumption and delivered power
* Cavitation on propellers and Energy Saving Devices (ESD)
* Energy Efficiency Design Index (EEDI)
* Manoeuvres according to ITTC procedures
* Appendage torque and bending moments and load cases
* Seakeeping, added drag, motions and accelerations, slamming loads
* Global ship bending moments in waves
* Roll damping, performance of fin stabilisers, trim tabs and interceptors
* Fluid Structure Interaction (FSI) of sails and wings
* Occupant safety and comfort including local wind effects and exhaust gas
* Ship Helicopter Operating Limits (SHOL)
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According to the EU Action Plan there is a huge need of change to a more sustainable future and to collaborate and assure to achieve the SDG.
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