
You have already added 0 works in your ORCID record related to the merged Research product.
You have already added 0 works in your ORCID record related to the merged Research product.
<script type="text/javascript">
<!--
document.write('<div id="oa_widget"></div>');
document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=undefined&type=result"></script>');
-->
</script>
On the S-shaped floaters for a Wavestar-like wave energy converter with an I-shaped mechanical power take-off

A numerical wave energy converter (WEC) similar to the Wavestar WEC with eight units, each comprising an I-shaped power take-off (PTO), was studied with the cylindrical-hemispherical (C-HS) and S-shaped floaters. Efforts were made to examine the effects of the floater-geometry change on the PTO power performance and to study the significance of replacing a C-HS with an S-shaped floater of the same size and resonance characteristics using a hybrid algorithm based on ANSYS AQWA and MATLAB Simscape. The pure floater-shape-change effects on their heave responses were evaluated through the time-domain simulations in ANSYS AQWA and imported into a MATLAB-Simscape-based algorithm of the PTO to investigate the performance of the PTO and the overall WEC model under those effects. The buoys on the model scale were tested in a lab-scale facility, followed by a CFD analysis to study how the surrounding fluid interacts with the C-HS and the S-shaped floaters. The spectral modeling showed that the S-shaped floater could achieve a 5.5% greater RMS heave response than the C-HS in irregular waves. Replacing a C-HS with an S-shaped floater, the maximum increase in the PTO force was recorded to be 14%. A PTO integrated into an S-shaped floater attained 26% greater input power than one integrated into a C-HS floater. At an energy conversion efficiency of 55%, the PTO output power with an S-shaped floater tends to be 25–26% greater than with a C-HS floater. Replacing a C-HS with an S-shaped floater in the Wavestar-like WEC could be an optimal choice.
- Southeast University China (People's Republic of)
- Northwestern Polytechnical University China (People's Republic of)
- Southwest Jiaotong University China (People's Republic of)
- Northwestern Polytechnical University China (People's Republic of)
Sustainable development goals, Engineering (General). Civil engineering (General), Floater geometry, I-shaped PTO, S-shaped floater, TA1-2040, Wave energy converter
Sustainable development goals, Engineering (General). Civil engineering (General), Floater geometry, I-shaped PTO, S-shaped floater, TA1-2040, Wave energy converter
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).0 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average
