This report presents the results of a computational study to determine the hydrodynamic performance of a marine turbine for the production of renewable energy from tidal currents. The methodology is based on a Boundary Integral Equation Model (BIEM) valid for inviscid ows and here generalised to account for the e ects of viscous ow sepa- ration and stall on turbine blades. The objective of this work is to investigate the e ectiveness of the proposed Viscous Flow Correction (VFC) model over a range of variation of Reynolds number charac- terizing the in ow to model turbine blades. To this aim, numerical applications to the Schottel Hydro SIT 250 turbine case are presented and numerical results by BIEM-VFC are compared with experimental data from model tests at di erent onset ow speed performed at the Circulating water Channel facility by CNR-INSEAN. The activity has been performed as in-kind contribution by CNR- INSEAN to the research project TTT3 (Tidal Turbine Testing 3) funded by Invest Northern Ireland, and coordinated by Queen's Uni- versity of Belfast. Work presented in the report has been funded under the CNR-INSEAN Project ULYSSES (Underpin LaboratorY for Studies on Sea Energy Systems).
Computational modelling of tidal turbine performance: the Schottel Hydro SIT250 test case
Zohreh Sarichloo;Francesco Salvatore
2018
Abstract
This report presents the results of a computational study to determine the hydrodynamic performance of a marine turbine for the production of renewable energy from tidal currents. The methodology is based on a Boundary Integral Equation Model (BIEM) valid for inviscid ows and here generalised to account for the e ects of viscous ow sepa- ration and stall on turbine blades. The objective of this work is to investigate the e ectiveness of the proposed Viscous Flow Correction (VFC) model over a range of variation of Reynolds number charac- terizing the in ow to model turbine blades. To this aim, numerical applications to the Schottel Hydro SIT 250 turbine case are presented and numerical results by BIEM-VFC are compared with experimental data from model tests at di erent onset ow speed performed at the Circulating water Channel facility by CNR-INSEAN. The activity has been performed as in-kind contribution by CNR- INSEAN to the research project TTT3 (Tidal Turbine Testing 3) funded by Invest Northern Ireland, and coordinated by Queen's Uni- versity of Belfast. Work presented in the report has been funded under the CNR-INSEAN Project ULYSSES (Underpin LaboratorY for Studies on Sea Energy Systems).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
