Browse > Article

Numerical Analysis for Wave Propagation with Vegetated Coastal Area  

LEE SEONG-DAE (Dept. of Civil Engineering, College of Engineering, Halla University)
Publication Information
Journal of Ocean Engineering and Technology / v.20, no.1, 2006 , pp. 63-68 More about this Journal
Abstract
Recently, it has been widely recognized that coastal vegetations may have great value in supporting fisheries, protecting from wave attack, stabilizing the sea bed and maintaining good scenery. Hydrodynamic factors play a major role in the functions of water quality and ecosystems. However, the studies on physical and numerical process of wave propagation are few and far behind compared to those on the hydrodynamic roles of coastal vegetations. In general, Vegetation flourishing along the coastal areas attenuates the incident waves, through momentum exchange between stagnated water mass in the vegetated area and rapid mass in the un-vegetated area. This study develops a numerical model for describing the wave attenuation rate in the complex topography with the vegetation area. Based on the numerical results, the physical properties of the wave attenuation are examined under various wave, geometric and vegetation conditions. Through the comparisons of these results, the effects of the vegetation properties, wave properties and model parameters such ac the momentum exchange coefficient have been clarified.
Keywords
Wave Propagation; Numerical Analysis; Coastal Vegetation; Unsteady Mild Slope Equation; Wave Attenuation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Mendez, F.J. and Losada, I.J. (2004). 'An Empirical Model to Estimate the Propagation of Random Breaking and Nonbreaking Waves over Vegetation Fields', Coastal Engineering, Vol 51, pp 103-118   DOI   ScienceOn
2 Mendez, E.J Losada, I.J. and Losada, M.A. (1999). 'Hydrodynamics Induced by Wind Waves in a Vegetation Field', J. Geophysical Research, Vol 104, No C8, pp 18383-18396   DOI
3 Asano, T. Matsumoto, R. and Kikuchi, S. (2003). 'Wave Deformation Vegetation Fringed Channels', Proc. of Coastal Engineering, JSCE, pp 56-60
4 Lovas, S.M. and Torum, A.(2001). 'Effect of the Kelp Laminaria Hyperborea upon Sand Dune Erosion and Ater Particle Velocities', Coastal Engineering, Vol 44, pp 37-63   DOI   ScienceOn
5 Sugahara,K. and Nagai, T. (1994). 'Hydraulic Model Experiment on the Artificial Seaweed against Scouring and Beach Erosion'. Tech. Note of PHRI, pp 39
6 Sugahara,K. and Irie, I. (1990). 'Experiments on the Effects of Artificial Seaweed on the Sand Movement'. Tech. Note of PHRI, pp 48
7 최정권 (1999). '해안습지의 복원과 선례', 한국수자원학회지, 제32권, 제5호, pp 124-133
8 Broome, S. Rogers, S.M. and Senaca,E.D. (1992) 'Shoreline Erosion Control using Marsh Vegetation and Low-cost Structures', Sea Grant Pub. of US Envir. Protection Agency and Univ. North Caroline, pp 20