Director of studies: Dr Edward Ransley
2nd supervisor: Dr
3rd supervisor: Dr
Applications are invited for a three-year PhD studentship.
The studentship will start on 1 October
As a consequence of climate change, the world’s oceans are
getting stormier and there is a growing likelihood that offshore wind turbines (OWTs)
will have to survive increasingly extreme conditions, including highly
nonlinear fluid-structure-interaction (FSI). This, coupled with the increasing
size of OWTs and the necessary exploitation of deeper/less favourable sites,
represents considerable risk and uncertainty in OWT development.
A numerical model, combining the capabilities of
computational fluid dynamics (CFD) and structural mechanics, is required to
understand the complex, aero-hydro-elastic behaviour of OWTs under extreme
environmental conditions, such as typhoons in NW Pacific.
The aim of this PhD is, therefore, to develop and validate a
fully nonlinear, coupled CFD and structural mechanics tool and use it to reduce
uncertainty in the forces on OWTs during extreme conditions. To achieve this
aim, the project has the following objectives:
- Develop a numerical wave tank (NWT), using open-source CFD software OpenFOAM, to predict extreme environmental loading on OWTs.
- Add solid-mechanics capability, within the NWT domain, to allow for coupled FSI simulation of OWTs.
- Participate in bespoke physical modelling, in the COAST Laboratory, and use the results, along with existing benchmarks, to validate the numerical tool.
- Use the tool to assess the high-order loading and dynamic response of OWTs, in extreme conditions.
The successful candidate will join the COAST Engineering Research Group as well as the MAterials and STructures (MAST) Research Group. The project will also be supported by the CCP-WSI, with considerable opportunities for training and development in fluid dynamics and software engineering. The candidate will also benefit from strong links with the Supergen ORE and PRIMaRE initiatives, providing access to research across the entire offshore renewable energy (ORE) field.