The pressure impulse of wave slamming on an oscillating wave energy converter
作者： E. Renzi , Y. Wei , F. Dias
DOI: 10.1016/J.JFLUIDSTRUCTS.2018.07.007
关键词: Flapping 、 Mechanics 、 Pressure measurement 、 Physics 、 Hypergeometric function 、 Eigenfunction 、 Wave tank 、 Gauss 、 Impulse (physics) 、 Slamming
摘要: Abstract Recent wave tank experiments on a flap-type energy converter showed the occurrence of extreme loads, corresponding to slamming events in highly energetic seas. In this paper, we analyse pressure-impulse values from available pressure measurements, for series experimental tests. Then, devise model flapping plate, including effects caused by air entrapment near plate. Using double conformal-mapping technique, map original domain into semi-infinite channel, means Gauss’ hypergeometric functions. This allows us express impulse as superimposition orthogonal eigenfunctions transformed space. The mathematical is validated against data. Parametric analysis shows that system much more sensitive impact angle than initial wetted portion flap. Furthermore, presence an aerated region determines increase significantly at all points flap surface.
lboro.ac.uk
narcis.nl参考文章(38)
S. Michele, P. Sammarco, M. d’Errico, E. Renzi, A. Abdolali, G. Bellotti, F. Dias, Flap gate farm: From Venice lagoon defense to resonating wave energy production. Part 2: Synchronous response to incident waves in open sea Applied Ocean Research. ,vol. 52, pp. 43- 61 ,(2015) , 10.1016/J.APOR.2015.05.002
Yanji Wei, Ashkan Rafiee, Alan Henry, Frederic Dias, Wave interaction with an oscillating wave surge converter, Part I: Viscous effects Ocean Engineering. ,vol. 104, pp. 185- 203 ,(2015) , 10.1016/J.OCEANENG.2015.05.002
Dripta Sarkar, Kenneth Doherty, Frederic Dias, The modular concept of the Oscillating Wave Surge Converter Renewable Energy. ,vol. 85, pp. 484- 497 ,(2016) , 10.1016/J.RENENE.2015.06.012
Diego Vicinanza, Jørgen Harck Nørgaard, Pasquale Contestabile, Thomas Lykke Andersen, Wave loadings acting on Overtopping Breakwater for Energy Conversion Journal of Coastal Research. ,vol. 165, pp. 1669- 1674 ,(2013) , 10.2112/SI65-282.1
Pál Schmitt, Björn Elsaesser, On the use of OpenFOAM to model Oscillating wave surge converters Ocean Engineering. ,vol. 108, pp. 98- 104 ,(2015) , 10.1016/J.OCEANENG.2015.07.055
M. Brocchini, O. M. Faltinsen, C. Lugni, Wave impact loads: The role of the flip-through Physics of Fluids. ,vol. 18, pp. 122101- ,(2006) , 10.1063/1.2399077
A. Babarit, A database of capture width ratio of wave energy converters Renewable Energy. ,vol. 80, pp. 610- 628 ,(2015) , 10.1016/J.RENENE.2015.02.049
Giovanni Cuomo, William Allsop, Shigeo Takahashi, Scaling wave impact pressures on vertical walls Coastal Engineering. ,vol. 57, pp. 604- 609 ,(2010) , 10.1016/J.COASTALENG.2010.01.004
G.N. Bullock, C. Obhrai, D.H. Peregrine, H. Bredmose, Violent breaking wave impacts. Part 1: Results from large-scale regular wave tests on vertical and sloping walls Coastal Engineering. ,vol. 54, pp. 602- 617 ,(2007) , 10.1016/J.COASTALENG.2006.12.002