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Numerical and Experimental Investigations of Wave Field Around a Circular Island with the Presence of Weak Currents

Published online by Cambridge University Press:  05 May 2011

Ming-Chung Lin*
Affiliation:
Department of Naval Architecture and Ocean Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
Chao-Min Hsu*
Affiliation:
Department of Naval Architecture and Ocean Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
Shou-Cheng Wang*
Affiliation:
Department of Naval Architecture and Ocean Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
Chao-Lung Ting*
Affiliation:
Department of Naval Architecture and Ocean Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
*
*Prof.
**Ph.D. Student
***Master
****Assoc. Prof.
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Abstract

This study elucidated the complicated phenomena of wave refraction and diffraction around a circular island due to random incident waves traveling with a current. Various combinations of random incident wave and current conditions were used to investigate the wave height distributions around a circular island numerically and experimentally. Numerical calculations were carried out based on the theory derived by Lin & Hsu [1]. According to the results, it shows that numerical calculations can predict experimental data quantitatively well.

Type
Articles
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2002

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References

REFERENCES

1Lin, M. C. and Hsu, C. M., “A Study on Mild-Slope Equation of Random Waves with Currents,” The Chinese Journal of Mech. Eng., B, 15(2), pp. 95102 (1999).Google Scholar
2Homma, S., “On the Behavior of Seismic Sea Waves around a Circular Island,” Geophys. Mag., 21, pp. 199208 (1950).Google Scholar
3Vanstano, A. C. and Reid, R. O., “Tsunami Response for Island: Verification of a Numerical Procedure,” J. Mar. Res., 25, pp. 129139 (1967).Google Scholar
4Berkhoff, J. C. W., “Computation of Combined Refraction-Diffraction,” Proc. of 13th International Conf. on Coastal Eng., ASCE, Van D.C., Canada, pp. 471490 (1972).Google Scholar
5Smith, R. and Sprinks, T., “Scattering of Surface Wave by a Conical Island,” J. Fluid Mech., 72, pp. 373384 (1975).CrossRefGoogle Scholar
6Tsay, T. K. and Liu, P. L. -F., “Numerical Solution of Water Wave Refraction and Diffraction Problem in the Parabolic Approximation,” J. Geophys. Res., 87(10), pp. 79327940 (1972).CrossRefGoogle Scholar
7Booij, N., “Gravity Waves on Water with Non-Uniform Depth and Current, Communication on Hydraulics,” Report No. 81-1, Dept. of Civil Eng., Delft Univ. of Technology, The Netherlands (1981).Google Scholar
8Kirby, J. T., “A Note on Linear Surface Wave-Current Interaction over Slowly Varying Topography,” J. Geophys. Res., 89(C1), pp. 325331 (1984).Google Scholar
9Turpin, F. M., Benmoussa, C. and Mei, C. C.Effects of Slowly Varying Depth and Current on the Evolution of a Stokes Wave-Packet,” J. Fluid Mech., 132, pp. 123 (1983).CrossRefGoogle Scholar
10Kubo, Y., Kotake, Y., Isobe, M. and Watanabe, A., “Time-Dependent Mild Slope Equation for Random Waves,” Proc. of the 23rd International Conference on Coastal Engineering, Venice, Italy, 1, pp. 409431 (1992).Google Scholar
11Goda, Y., Random Seas and Design of Maritime Structures, Part 1, Chapter 4, University of Tokyo Press (1985).Google Scholar
12Goda, Y., “Irregular Wave Deformation in the Surf Zone,” Coastal Eng. in Japan, 18, pp. 1326 (1975).CrossRefGoogle Scholar