Browse > Article

2D Computational Analysis of Overtopping Wave Energy Convertor  

Liu, Zhen (Shandong Province Key Laboratory of Ocean Engineering, Ocean University of China)
Hyun, Beom-Soo (College of Ocean Science and Technology, Korea Maritime University)
Jin, Ji-Yuan (College of Ocean Science and Technology, Korea Maritime University)
Publication Information
Journal of Ocean Engineering and Technology / v.23, no.6, 2009 , pp. 1-6 More about this Journal
Abstract
An Overtopping Wave Energy Convertor (OWEC) is an offshore wave energy convertor used for collecting overtopping waves and converting the water pressure head into electric power through hydro turbines installed in a vertical duct affixed to the sea bed. A numerical wave tank based on the commercial computational fluid dynamics code Fluent is established for the corresponding analysis. The Reynolds Averaged Navier-Stokes equation and two-phase VOF model are utilized to generate the 2D numerical linear propagating waves, which are validated by the overtopping experiment results. Calculations are made for several incident wave conditions and shape parameters for the overtopping device. Both the incident wave periods and heights have evident effects on the overtopping performance of the OWEC device. The computational analysis demonstrates that the present overtopping device is more compatible with longer incident wave periods.
Keywords
Wave energy; Overtopping wave energy convertor; Numerical wave tank; Overtopping discharge;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Liu, Z., Hyun, B.S. and Jin, J.Y. (2008a). "The Application of FBNWT in Wave Overtopping Analysis", Journal of Ocean Engineering and Technology, Vol 22, No 1, pp 1-5   과학기술학회마을   ScienceOn
2 Youngs, D.L. (1982). Time-dependent Multi-material Flow with Large Fluid Distortion, Num Meth Fluid Dynamics, Academic Press, New York
3 Isobe, M. (2001). "A VOF-based Numerical Model for Wave Transformation in Shallow Water", In Proc Int Workshop on ADMS21, PHRI, pp 200-204
4 Shin, S.H., Hong, K.Y., Ryu, H.J. and Kim, J.H. (2008), "Analysis of Wave Overflowing Characteristics for a Reef-type Structure", Proceeding of The Korean Society of Ocean Engineering, pp 68-71
5 Lin, P. and Liu, PL-F. (1998). "A Numerical Study of Breaking Waves in the Surf Zone", J. Fluid Mech., Vol 359, pp 239-264   DOI   ScienceOn
6 Hirt, C.W. and Nichols, B.D. (1981). "Volume of Fluid (VOF) Method for the Dynamics of Free Boundaries", J. Comp. Phys., Vol 39, pp 201-225   DOI   ScienceOn
7 Hu, K., Mingham, C.G. and Causon, D.M. (2000). "Numerical Simulation of Wave Overtopping of Coastal Structures Using the Nonlinear Shallow Water Equations", Coastal Engineering, Vol 41, No 4, pp 433-465   DOI   ScienceOn
8 Liu, Z., Hyun, B.S. and Jin, J.Y. (2008b). "Numerical Prediction for Overtopping Performance of OWEC", Journal of the Korea Society for Marine Environmental Engineering, Vol 11, No 1, pp 35-41
9 Sommerfeld, A. (1949). Partial Differential Equation in Physics, Academic Press, New York
10 Hieu, P.D., Katsutoshi, T. and Ca, V.T. (2004) "Numerical Simulation of Breaking Waves using a Two-phase Flow Model", Applied Mathematical Modeling, Vol 28, pp 983-1005   DOI   ScienceOn