Sam Fredriksson SRV - Bangor/Minesto Visit
I participated in an international joint effort (from 12th to 17th September 2019) to plan and eventually perform the first, to our knowledge, ship-mounted ADCP velocity measurements downstream of a Deep Green 500 tidal plant in operation in Holyhead Deep, Anglesey UK.
Minesto who is developing the Deep Green tidal kite has a test site outside Holyhead in Wales which is presently undergoing its commissioning program. Throughout 2016 – 2018, I and my colleagues at University of Gothenburg and Chalmers University of Technology have been running a research project together with Minesto Ltd with the purpose of studying the turbulence in undisturbed tidal currents using Large Eddy Simulation (LES) and including a model of the Deep Green. The next phase of this research is to use the model we’ve developed to study how to efficiently arrange a tidal power array with the Deep Green turbines. Here, the funding provided by the PRIMaRE project, has played a very valuable role in aiding our collaboration with the researchers at Bangor University, who are working with Minesto Ltd through the SEACAMS2 project, to take velocity measurements around the kite to provide a greater understanding of how the kite interacts with the surrounding environment, and provide validation data for the model simulations.
On Thursday we met with Andrew Green at Minesto Ltd’s site office in Holyhead. We discussed how to proceed with the measurement campaign and how to overcome future challenges.
On Friday I had the opportunity to meet with students from University of Bangor to, amongst other things, discuss how to plan their studies and be prepared for the challenges of the marine renewable energy sector. After this session, I discussed potential research alliances with a number of research staff within the School of Ocean Sciences department at Bangor University, around the subject of how LES results in conjunction with sonar observations could be used to study fish diurnal vertical migration and eventually foresee future changes in the migration patterns due to Deep Green.
During the weekend I had the opportunity to see some of the highlights of the Snowdonia national park: Guided by my hosts Alice Goward Brown and Matthew Lewis, I climbed the highest peak in Wales (Snowdon), they arranged sunny weather and guided me up one of the lesser known paths. We also took the opportunity to visit the large and very interesting slate mine close to Llanberis.
The research collaboration continued on Monday where I gave a well-attended seminar and presented the findings of the first phase of our research with Minesto Ltd using large eddy simulations. Since I am splitting my research between University of Gothenburg and the research department of SMHI (Swedish Metrological and Hydrological Institute), I took the opportunity to present some of the work SMHI is doing using NEMO-Nordic-SCOBI, a biogeochemical model setup covering the North Sea and Baltic Sea. Tuesday was used to sum up the work so far and to continue some of the fruitful discussions from the Monday seminar.
I would like to once again thank PRIMARE for supporting the travel to this international joint effort through their SRV grant and to the warm welcome I received from Bangor University, Minesto Ltd and Wales.