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A Study on the Characteristics of the Stem Wave in front of the Coastal Structure  

PARK HYO-BONG (Dept. of Ocean Engineering, Pukyong National University)
YOON HAN-SAM (Dept. of Ocean Engineering, Pukyong National University)
RYU CHEONG-RO (Dept. of Ocean Engineering, Pukyong National University)
Publication Information
Journal of Ocean Engineering and Technology / v.17, no.5, 2003 , pp. 25-31 More about this Journal
Abstract
Numerical experiments have been conducted using the nonlinear combined refraction-diffraction model, in order to analyze the generation characteristics of stem wave, which is formed by the interaction between vertical structure and the oblique incident waves. The results of stem wave are discussed through the stem wave height distribution along/normal vertical structure, under the wide range of incident wave conditions-wave heights, periods, depths, and angles. Under the same wave height and period, the larger the incident wave angle, the higher the stem wave heights. According to the results of wave height distribution, in front of vertical structure, the maximum of stern wave heights occurs in the location bordering the vertical wall. Furthermore, the most significant result is that stem waves occur under the incident angles between $0^{\circ}\;and\;30^{\circ}$, and the stem wave height ratio has the maximum value, which is approximately 1.85 times the incident wave height when the incident wave angle becomes $23^{\circ}$.
Keywords
Stem Wave 연파;Vertical Structure 직립구조물;Nonlinear Combined Refraction-Diffraction model 비선형 굴절-회절모형;Numerical Experiments 수치실험;Stem Wave Height Ratio 연파 파고비;Oblique Incident Wave 경사입사파;
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  • Reference
1 Berger, V. and Kohlhase, S. (1976). "Mach-reflection as a Diffraction Problem", Proc. 25th Conf. Coastal Eng., ASCE, 1, pp 796-814
2 Hajime, M., Tetsu, M., Masatoshi, Y. and Toshikazu, K. (2002). "Stem Wave along Vertical Wall due to Random Wave Incidence", Coastal Eng., Vol 44, pp 339-350   DOI   ScienceOn
3 Kirby, J.T. (1986). "Rational Approximations in the Parabolic Equation Method for Water Waves", Coastal Eng., Vol 10, pp 355-378   DOI   ScienceOn
4 Perroud, P.H. (1957). The Solitary Wave Reflection along a Straight Vertical Wall at Oblique Incident. Ph.D. Thesis, Univ. Calif., Berkeley, Inst. Eng. Res., Tech. Rept. No. 99-3
5 Berkhoff, J.C.W. (1972). "Computation of Combined refraction-diffraction", Proc. 13th Conf. Coastal eng., ASCE 1, pp 471-490
6 Radder, A.C. (1979). "On the Parabolic Equation Method for Water Wave Propagation", J. Fluid Mech. Vol 95, pp 159-176   DOI   ScienceOn
7 Kirby, J.T. and Dalrymple, R.A. (1986). "An Approximate Model for Nonlinear Dispersion in Monochromatic Wave Propagation Models", Coastal Eng., Vol 9, pp 545-561   DOI   ScienceOn
8 Wiegel, R.L. (1964). Oceanographical Engineering, Prentice Hall
9 Berkhoff, J.C. Booy, N. and Radder, A.C. (1982). "Verification of Numerical Wave Propagation Models for Simple Harmonic Linear Water Waves", Coastal Eng., Vol 6, pp 168-177
10 Yue, D.K.P. and Mei, C.C. (1980). "Forward Diffraction of Stokes Waves by a Thin Wedge", J. Fluid Mech., Vol 99, pp 33-52   DOI   ScienceOn
11 Liu, P.L.-F. and Yoon, S.B. (1986). "Stem Wave along a Depth Discontinuity", J. Geophys. Res., Vol 91(C3), pp 3979-3982   DOI
12 Wiegel, R.L. (1964). Oceanographical Engineering, Prentice Hall
13 Kirby, J.T. and Dalrymple, R.A. (1983). "A Parabolic Equation for the Combined Refraction-diffraction of Stokes Waves by Mildly Varying Topography", J. Fluid Mech., Vol 136, pp 453-466   DOI   ScienceOn
14 Yoon, S.B. and Liu, P.L.-F. (1989). "Stem Waves along Breakwater", J. Waterway Port Coastal and Ocean Eng., ASCE, Vol 115, No 5, pp 635-648   DOI