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Professor Sandy Day

Naval Architecture, Ocean and Marine Engineering

Personal statement

Sandy Day is Professor of Marine Hydrodynamics in the Naval Architecture Ocean and Marine Engineering Dept. at Strathclyde University, and is the Director of the University’s Kelvin Hydrodynamics Laboratory. His research interests lie in computational and experimental hydrodynamics; he is actively engaged in fundamental and industry-focussed research on energy efficiency of ships, motions and loads on ships and offshore oil and gas structures, and performance of offshore renewable energy devices, as well as sports hydrodynamics applied to sailing rowing and kayaking.

He is highly active in the International Towing Tank Conference (ITTC), which sets best-practice standards for large-scale hydrodynamics facilities worldwide; he has recently chaired the ITTC committee on Hydrodynamic Testing of Marine Renewable Energy Devices, and was responsible for writing new best-practice standards for tank testing of offshore wind, wave and tidal energy devices.


Model test research of a semisubmersible floating wind turbine with an improved deficient thrust force correction approach
Li Liang, Gao Yan, Hu Zhiqiang, Yuan Zhiming, Day Sandy, Li Haoran
Renewable Energy Vol 119, pp. 95-105, (2018)
Current blockage and extreme forces on a jacket model in focussed wave groups with current
Santo H., Taylor P.H., Day A.H., Nixon E., Choo Y.S.
Journal of Fluids and Structures Vol 78, pp. 24-35, (2018)
Dynamic response and power production of a floating integrated wind, wave and tidal energy system
Li Liang, Gao Yan, Yuan Zhiming, Day Sandy, Hu Zhiqiang
Renewable Energy Vol 116, pp. 412-422, (2018)
Numerical studies on non-linearity of added resistance and ship motion of KVLCC2 in short and long waves
Hizir Olgun Guven, Kim Mingyu, Turan Osman, Day Alexander, Incecik Atilla, Lee Yongwon
International Journal of Naval Architecture and Ocean Engineering, (2018)
A mixed-method optimisation and simulation framework for supporting logistical decisions during offshore wind farm installations
Barlow Euan, Tezcaner Öztürk Diclehan, Revie Matthew, Akartunali Kerem, Day Alexander H., Boulougouris Evangelos
European Journal of Operational Research Vol 264, pp. 894-906, (2018)
Experimental and numerical analysis of a TLP floating offshore wind turbine
Oguz Elif, Clelland David, Day Alexander H., Incecik Atilla, López Juan Amate, Sánchez Gustavo, González Almeria Gonzalo
Ocean Engineering Vol 147, pp. 591-605, (2018)

more publications

Professional activities

Sports Engineering (Journal)
Peer reviewer
Ships and Offshore Structures (Journal)
Peer reviewer
International Towing Tank Conference (External organisation)
International Shipbuilding Progress (Journal)
Peer reviewer
Transactions of the Royal Institution of Naval Architects. Part B, International Journal of Small Craft Technology (Journal)
Editorial board member
International Towing Tank Conference (External organisation)

more professional activities


United Kingdom Centre for Marine Energy Research - Supergen Marine 4
Johnstone, Cameron (Principal Investigator) Day, Alexander (Co-investigator)
Period 01-Dec-2016 - 30-Nov-2018
Marine Renewable Infrastructure Network for Enhancing Technologies 2 MARINET II
Johnstone, Cameron (Principal Investigator) Day, Alexander (Co-investigator) Stack, Margaret (Co-investigator)
Period 01-Jan-2017 - 30-Jun-2021
TLPWIND UK: Driving the cost down of offshore wind in UK Waters
Day, Alexander (Principal Investigator) Clelland, David (Co-investigator) Incecik, Atilla (Co-investigator) Oguz, Elif (Researcher)
Technology Strategy Board Advanced Engineering and Manufacturing
Period 01-Sep-2014 - 08-Mar-2016
MARLIN Modular Floating Platform for Offshore Wind : Concept Assessment
Blackwell, Paul (Principal Investigator) Clelland, David (Co-investigator) Day, Alexander (Co-investigator)
"Project MARLIN will assess and develop a new concept for a modular floating platform system for offshore wind. The project will confirm technical and commercial feasibility of the novel method of construction and deployment of floating structures capable of supporting commercially relevant size wind turbines from ISO standard freight container-sized modules. Current demonstrator concepts in floating offshore wind require infrastructure of the scale unavailable or inaccessible in most of the world. Cost reductions needed to remove barriers to floating offshore adoption will come from development of methods not requiring large infrastructure and use of cost-effective mass manufacturing methods for making the construction modules. The proposed modular approach, with specially designed smaller and lighter building modules that could be towed out to sea for assembly, is significantly technically different from the current concepts and demonstrators. The concept will resolve the issue of prohibitively high cost of construction, logistics, and deployment in floating offshore wind. The main overarching research objective is to design the modules and the full structure, test those out as mathematical and physical models, carry out wave tank and sea conditions testing, and development of the manufacturing method. The project will deliver: design of a low-cost single module building block structure, design of a full modular configurable structure, creating physical and mathematical models, tank tests and sea test of physical models, analysis of manufacturing feasibility including a materials selection study and identification of coastal sites and new markets for adoption of the technology. Two of the University of Strathclyde engineering departments, AFRC and NAOME, will work together with the other members of the consortium. NAOME's role within the consortium is to develop a detailed hydrodynamic simulation model of the semi-submersible concept for two different types of floating modules - a passive one and a dynamic one which can have its buoyancy and orientation altered. Scaled models of the two module concepts under a range of different sea states representative of where the wind turbines will be deployed will be conducted. The results will be measured and analysed and a report provided to the lead partner on the findings from both tests and simulations. AFRC's role is to develop a finite element (FE) model for the initial and refined modules, to determine their suitability in terms of structural strength performance under different load cases. Once the best configuration for the module has been determined, the AFRC will develop a FE model for two different configurations of the final structural assembly made with the selected module and simulate the performance of the overall structures. A report will be provided, summarising the findings. Due to the complexity of the project, the geographical spread of the partners and the close collaborative nature of the project, AFRC will also support Frontier Technical in the management of the project."
Period 01-Feb-2017 - 31-Oct-2017
HOLISHIP HOLIstic optimisation of SHIP design and operation for life cycle (H2020 SC4)
Boulougouris, Evangelos (Principal Investigator) Clelland, David (Co-investigator) Day, Alexander (Co-investigator) Theotokatos, Gerasimos (Co-investigator) Yuan, Zhiming (Co-investigator)
Period 01-Sep-2016 - 31-Aug-2020
Low Carbon Shipping - A systems approach | Howett, Benjamin
Day, Alexander (Principal Investigator) Incecik, Atilla (Co-investigator) Howett, Benjamin (Research Co-investigator)
Period 01-Jul-2010 - 01-Jul-2013

more projects


Naval Architecture, Ocean and Marine Engineering
Hydrodynamics Laboratory

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