Ermakov, Andrei and Ringwood, John
(2021)
Development of an analytical model for a cyclorotor wave energy device.
Proceedings of the 14th European Wave and Tidal Energy Conference 27th Aug -1st Sept 2017.
1885-1-1885-7.
ISSN 2309-1983
Abstract
We present a new analytical model for a
horizontal axis cyclorotor-based wave energy converter
(WEC). A number of cyclorotor-based WEC concepts and
models, with different numbers of hydrofoils, have previ-
ously been studied. Our model is derived for a horizontal
cyclorotor with 2 hydrofoils. The governing equations are
optimised and converted to the polar coordinate system.
The mechanical model is based on Newton’s second law
for rotation. Rotation is considered in two-dimensional
potential flow, for both monochromatic and panchromatic
waves, including waves generated by the rotating rotor, and
viscous losses. The developed model is very convenient
for modelling, analysis and control design for a cyclorotor
based WEC.
The authors of this work have derived new, exact,
analytic functions for the free surface perturbation and
induced fluid velocity field caused by hydrofoil rotation.
These new formulae significantly decrease the model cal-
culation time, compared to previous models, and increase
the accuracy of the results. We present the results of free
rotation simulations for the rotor in monochromatic and
panchromatic waves obtained with the use of the newly
derived equations.
| Item Type: |
Article
|
| Keywords: |
Control design; Cyclorotor; Roto; LiftWEC;
Wave Energy Converter; |
| Academic Unit: |
Faculty of Science and Engineering > Electronic Engineering |
| Item ID: |
16601 |
| Depositing User: |
Dr Andrei Ermakov
|
| Date Deposited: |
10 Oct 2022 09:43 |
| Journal or Publication Title: |
Proceedings of the 14th European Wave and Tidal Energy Conference 27th Aug -1st Sept 2017 |
| Publisher: |
European Wave and Tidal Energy Conference |
| Refereed: |
No |
| URI: |
|
| Use Licence: |
This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available
here |
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