Next Article in Journal
Comparison of Basic Notch Filters for Semiconductor Optical Amplifier Pattern Effect Mitigation
Next Article in Special Issue
An Efficient Retrieval Technique for Trademarks Based on the Fuzzy Inference System
Previous Article in Journal
A New Damage Assessment Method by Means of Neural Network and Multi-Sensor Satellite Data
Previous Article in Special Issue
A Framework for Proactive Resource Provisioning in IaaS Clouds
Article Menu

Export Article

Open AccessArticle
Appl. Sci. 2017, 7(8), 782; doi:10.3390/app7080782

Enhancement of Sea Wave Potential Energy with Under-Sea Periodic Structures: A Simulation and Laboratory Study

Institute of Applied Mechanics, National Taiwan University, Taipei 10617, Taiwan
*
Author to whom correspondence should be addressed.
Received: 29 June 2017 / Revised: 26 July 2017 / Accepted: 28 July 2017 / Published: 2 August 2017
(This article belongs to the Special Issue Selected Papers from IEEE ICASI 2017)
View Full-Text   |   Download PDF [2258 KB, uploaded 2 August 2017]   |  

Abstract

This paper is devoted to a theoretical investigation on the wave amplitude enhancement of surface sea water waves with under-sea periodic arrays of cylinders. A two-dimensional shallow water wave equation is derived and solved by using the plane-wave expansion method. The lattice types studied here include triangular, square and hexagonal lattices. These under-sea structures alter the sea bottom topography and induce constructive interference on the surface water waves. Given that the wave potential energy is dependent on the square of the wave amplitude, this mechanism can thus be used to increase the potential energy. It is shown that the enhancement factor depends on two geometric parameters and the maximum wave amplitude can be found by adjusting the two geometric parameters. Among the lattice types, the triangular and square lattice structures can induce more wave amplitude enhancement (and thus potential energy) than the hexagonal structures. Guided by numerical simulations, we have performed a reduced-scale water tank experiment to demonstrate the feasibility of the proposed idea. Preliminary experimental results show promising evidence of the predicted wave amplitude enhancement, suggesting perspective real-scale nearshore deployment and test. View Full-Text
Keywords: wave propagation; surface water wave; shallow water wave equation; wave amplitude enhancement wave propagation; surface water wave; shallow water wave equation; wave amplitude enhancement
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Chiu, S.-F.; Wang, J.-J.; Wang, S.-C.; Chao, S.D. Enhancement of Sea Wave Potential Energy with Under-Sea Periodic Structures: A Simulation and Laboratory Study. Appl. Sci. 2017, 7, 782.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top