TY - JOUR
T1 - RANS-VOF Modelling of Floating Tidal Stream Systems
AU - Ransley, EJ
AU - Brown, SA
AU - Greaves, DM
AU - Hindley, S
AU - Weston, P
AU - Guerrini, E
AU - Starzmann, R
PY - 2016/3/21
Y1 - 2016/3/21
N2 - A fully nonlinear coupled CFD approach has been developed to simulate the behaviour and power
output of a floating tidal stream concept. The model includes RANS-VOF and rigid body solvers based on
OpenFOAM®, a hybrid-catenary mooring system and a two-way-coupled, actuator-line model for a Schottel
Instream Turbine with over-speed control. Simulations are performed in spring currents at the PTEC site with
and without the 1-in-1 year wave present. Results show considerable complexities beyond periodic behaviour
necessitating the use of models that include the complete coupled system and hydrodynamic conditions.
Introduction
Numerical models are now capable of providing the quantitative description required for engineering analysis.
However, for structures such as floating tidal stream concepts, the complete system can rarely be included using
existing functionality. To better understand the behaviour of these systems, a coupled CFD model, including a
floating barge, hybrid-catenary mooring system and the influence of a submerged turbine, has been developed
and tested at full-scale in waves and currents based on those at the Perpetuus Tidal Energy Centre (PTEC) site.
AB - A fully nonlinear coupled CFD approach has been developed to simulate the behaviour and power
output of a floating tidal stream concept. The model includes RANS-VOF and rigid body solvers based on
OpenFOAM®, a hybrid-catenary mooring system and a two-way-coupled, actuator-line model for a Schottel
Instream Turbine with over-speed control. Simulations are performed in spring currents at the PTEC site with
and without the 1-in-1 year wave present. Results show considerable complexities beyond periodic behaviour
necessitating the use of models that include the complete coupled system and hydrodynamic conditions.
Introduction
Numerical models are now capable of providing the quantitative description required for engineering analysis.
However, for structures such as floating tidal stream concepts, the complete system can rarely be included using
existing functionality. To better understand the behaviour of these systems, a coupled CFD model, including a
floating barge, hybrid-catenary mooring system and the influence of a submerged turbine, has been developed
and tested at full-scale in waves and currents based on those at the Perpetuus Tidal Energy Centre (PTEC) site.
UR - https://pearl.plymouth.ac.uk/context/secam-research/article/1076/viewcontent/OTE2016Abstract_final_revised.pdf
M3 - Conference proceedings published in a journal
VL - 0
JO - Default journal
JF - Default journal
IS - 0
T2 - in Proceedings of the 5th Oxford Tidal Energy Workshop
Y2 - 21 March 2016 through 22 March 2016
ER -