The Variation of The Wave Reducing Efficiency of Prismatic Fixed Surface Obstacles With Respect to Its Dimensions

  • Yalçin Arisoy
Part of the NATO ASI Series book series (NSSE, volume 178)


Study of the effects of fixed obstacles on incident waves can give considerable insight into the design of offshore structures. With certain assumptions simplifying the phenomena, motions caused by incident waves around the obstacles can be defined as a velocity potential, but this approach may be analytically very complex. Velocity potential around the obstacle can also be numerically determined by means of finite difference methods which are considerably simpler than the analytical techniques.

In this study, the effects of dimensions of prismatic obstacles on the incoming sinusoidal waves with small amplitudes are investigated. It is found that sectional barriers are more effective on reflecting waves than homogenous barriers with the same external dimensions if one evaluates them on the basis of their cross sectional areas and the material required for construction.


Incident Wave Finite Difference Method Wave Energy Velocity Potential Offshore Structure 
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  1. Akyarli, A. (1980) ‘The Analysis of the Wave Reducing Efficiency of Prismatic Floating Breakwaters by Finite Difference Methods’, Izmir, Ege University, Thesis for Associate Professorship, 180 p.Google Scholar
  2. Matsson, B. & Cederwall, K. (1977) ‘Vertical Barriers as Wave Attenuators’, Baden-Baden, Proc. of Seventeenth Cong, of IAHR, Vol. 4, pp. 57–64Google Scholar
  3. Mei, C.C. (1978) ‘Numerical Methods in Water Wave Differaction and Radiation’, Ann. Rev. Fluid Mech., Vol. 10, pp. 393–416.CrossRefGoogle Scholar
  4. Nece, R.E. & Richey, E.P. (1972) ‘Wave Transmission Tests on Floating Breakwater for Oak Harbor’, Univ. of Washington, C.W. Harris Hydraulic Lab., Tech. Rep. 32.Google Scholar
  5. Sutko, A.A. & Haden, E.L. (1974) ‘The Effect of Surge, Heave and Pitch on the Performance of a Floating Breakwater’, New Port, Rhode Island, Proc. of the Floating Breakwaters Conf., pp. 4l–53.Google Scholar
  6. Şendil, U. & Graf, W.H. (1975) ‘Transmission of Regular Waves Past Fixed Plates’, Sao Paulo, Brasil, Proc. of Sixteenth Cong, of IAHR, Vol. 1, pp. 254–261.Google Scholar

Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • Yalçin Arisoy
    • 1
  1. 1.Dept. of Civil EngDokuz Eylül UniversityIzmirTurkey

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