Simulations of floating wave energy devices using adaptive mesh refinement
Paper i proceeding, 2018

CFD simulations of floating wave energy converters are computationally very heavy. This paper deals with a straightforward attempt to cut down on the computational effort by using adaptive mesh refinement (AMR). We investigate the use of AMR for simulations involving floating bodies inside the open-source finite volume framework OpenFOAM. A simple error indicator based on the pressure jump over cell faces is used to drive the AMR. First the use of the error indicator is illustrated for propagation of a very steep stream function wave. Then the AMR technique is applied to two cases of floating bodies: (i) a floating box and (ii) a bottom reacting point-absorber. As expected the AMR significantly reduce the number of cells in the computational meshes and subsequently lower the computational effort.

Adaptive mesh refinement

Wave energy

OpenFOAM

Författare

Claes Eskilsson

Aalborg Universitet

Johannes Palm

Chalmers, Mekanik och maritima vetenskaper, Marin teknik

Advances in Renewable Energies Offshore, Proceedings of the 3rd International Conference on Renewable Energies Offshore (RENEW 2018)

2638-647x (ISSN) 2638-6461 (eISSN)

431-438

Renewable Energies Offshore
Lissabon, Portugal,

Ickelinjära och viskösa effekters inverkan på energiomvandlingen hos flytande vågkraftverk

Energimyndigheten, 2015-08-01 -- 2017-02-28.

Drivkrafter

Hållbar utveckling

Ämneskategorier

Beräkningsmatematik

Strömningsmekanik och akustik

Marin teknik

Styrkeområden

Energi

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Mer information

Senast uppdaterat

2018-11-05