ADVERTORIAL DESIGN OPTIMISATION
Teignbridge is at the forefront of technology used in the design, performance prediction with simulation software and artificial intelligence driven geometric modelling for design optimisation.
the propeller design beyond that of a standard approach, combining the best of experienced design engineers and advanced numerical simulation.
This integrated approach to propeller design starts by assessing the mission profile and/or history of vessel and the propulsion specification. The propeller is then designed for efficiency utilising computational fluid dynamics (CFD): Star CCM+ and genetic algorithm driven design refinement.
We can then undertake fully transient CFD wakefield simulation and wakefield design adaption, followed by our 1D ship simulation software which uses in-house HEPS Sim tool: Matlab + Simulink and off-design optimisation. If required we can validate the design by manufacturing the propeller and undertaking physical testing on our research vessel HRV1 which is based in Torbay.
Pressure distribution and vortex visualisation on propeller and its flow-aligned rudder for a high speed boat
HRV1 is a uniquely designed propulsion research vessel. Whilst scale model propellers can be tested in test tanks, HRV1 allows the testing of full-scale propellers, therefore reducing scale effects with propeller diameters up to 1200 mm vs. tank testing at 250 mm. By testing a full-scale propeller we can de-risk innovative ideas before introducing to the market and test a customer’s propeller designs before the vessel completes construction.
Also, undertaking numerous physical trials and comparing the results with our CFD predicted results means that we have an exceptional opportunity to refine our CFD numerical analysis comparison and verification. No other propeller designer and manufacturer has this unique set of tools at their disposal.
Pareto diagram of propeller design optimisation. Correlation between propeller thrust and hydrodynamic efficiency
Of course, not all customers will require such a sophisticated approach when ordering a new propulsion system, so Teignbridge has the flexibility to provide a wide range of propulsion design services from a rapid propeller sizing, to the inclusion of a selection of, or all of, the previous described tools. Teignbridge holds patterns to make over 2000 different propeller designs, so if your requirement is a rapid replacement propeller, the chances are that we will have a suitable pattern at our disposal for a timely delivery no matter where your vessel is located.
Although we always recommend a custom designed propeller to achieve optimum performance. Join our ‘Club Teign’ to ensure that you receive a preferential service and are prepared for what ever the season throws at you. If you would like to improve the performance or economy of your yacht, we can at the same time offer a custom designed high performance C-Foil propeller option. You will then have the peace of mind that should your propellers become damaged, you won’t have to wait six weeks for a replacement and reduce any unnecessary down time during a busy season.
Visualisation of numerically predicted wave pattern of a handy size bulk carrier and the propeller performance curves for the ship (Conventional vs. Optimised)
For more details Tel: +44 (0)1626 333377 or visit
www.teignbridge.co.uk
ONBOARD | SPRING 2021 | 117
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