Harmonic balance Navier-Stokes analysis of tidal stream turbine wave loads

ARCTIC, a novel incompressible Reynolds–averaged Navier–Stokes finite volume code for the hydrodynamic analysis of open rotor unsteady loads is presented. One of its unique features is a harmonic balance solver enabling high–fidelity analyses of turbine periodic hydrodynamic loads with runtimes redu...

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Bibliographic Details
Main Authors: Cavazzini, Anna, Campobasso, Michele Sergio, Marconcini, Muchele, Pacciani, Roberto, Arnone, Andrea
Other Authors: Ferrer, Esteban, de Montflaur, Adeline
Format: Text
Language:English
Published: Springer International Publishing 2019
Subjects:
Arctic
Online Access:https://eprints.lancs.ac.uk/id/eprint/134214/
https://eprints.lancs.ac.uk/id/eprint/134214/1/paper_v06.pdf
https://doi.org/10.1007/978-3-030-11887-7_4
Description
Summary:ARCTIC, a novel incompressible Reynolds–averaged Navier–Stokes finite volume code for the hydrodynamic analysis of open rotor unsteady loads is presented. One of its unique features is a harmonic balance solver enabling high–fidelity analyses of turbine periodic hydrodynamic loads with runtimes reduced by more than one order of magnitude over conventional time–domain CFD, and with negligible accuracy penalty. The strength of the new technology is demonstrated by analyzing with both harmonic balance and time–domain solvers the load fluctuations of a realistic tidal stream turbine. Such fluctuations are caused by a harmonic perturbation of the freestream velocity similar to that due to surface gravity waves.

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