INDUSTRY ROUND-UP
Bayonet Gpe Overtopping – a Modelling Tool at the Cutting-Edge of Coastal Engineering
Bayonet GPE – the free online overtopping tool developed by industry experts at HR Wallingford – is now live for coastal engineers to use at
www.overtopping.co.uk. The tool builds on more than three decades of computer modelling in the field, and employs sophisticated statistical modelling to predict overtopping with a wider range of information than ever before.
Since HR Wallingford developed the first wave overtopping computer model in the 1980s, the field has moved on apace. The latest model, Bayonet GPE, uses the powerful statistical ‘Gaussian Process Emulator’ (GPE) technique, replacing the more traditional neural network model. Used to predict overtopping, GPE modelling better predicts uncertainty by capturing a wide range of sources, including the fitting process and errors from laboratory
data that historically haven’t been taken into account. Uncertainty has significant implications at the design stage of a project so better overtopping predictions are a big advantage when conceiving coastal structures.
Dr Tim Pullen, Project Director at HR Wallingford, says: “Bayonet GPE allows engineers to test a wide range of sea wall types and specifications – such as berms, rock-armoured toes and upper walls – against a detailed range of sea conditions. We hope the tool will be invaluable to coastal engineers and professionals throughout the industry.”
The tool is easy and intuitive to use, with features such as ‘sliders’ that enable designers to understand the sensitivity of model outputs to a range of parameters. A simple green ‘thumbs up’ or red ‘thumbs down’ provides the user with an indication of the validity of the calculations being undertaken by the model.
HR Wallingford is receiving very positive feedback from those already using Bayonet GPE. Dr Eleni Anastasaki, Maritime and Coastal Engineer at engineering firm Ove Arup said: “Bayonet GPE is a significant improvement on the models we have used before. The increased finesse means we are more confident about predicting overtopping.”
Bayonet GPE has just completed beta-testing and as a result has been transferred to a new platform. It is now fully operational and available at no cost to the user at
www.overtopping.co.uk. So, with its accuracy and usability, Bayonet GPE is truly at the cutting-edge of coastal engineering know-how.
q +44 (0)1491 822 899 E
info@hrwallingford.com H
www.hrwallingford.com
46
www.dockyard-mag.com August 2019
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52
