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1 May 2018 Nonlinear Interaction of Unidirectional Random Waves along a Vertical Wall
Kyung-Ho Ryu, Choong Hun Shin, Jong-In Lee, Sung Bum Yoon
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Ryu, K.-H., Shin, C.H., Lee, J.-I. and Yoon, S.B., 2018. Nonlinear interaction of unidirectional random waves along a vertical wall. In: Shim, J.-S.; Chun, I., and Lim, H.S. (eds.), Proceedings from the International Coastal Symposium (ICS) 2018 (Busan, Republic of Korea). Journal of Coastal Research, Special Issue No. 85, pp. 1146–1150. Coconut Creek (Florida), ISSN 0749-0208.

In this study, laboratory experiments were conducted to investigate stem waves for unidirectional random waves. The measured wave heights were compared with the numerical simulations using REF/DIF S developed by Kirby and Özkan (1994). For the case of small amplitude waves no stem wave is developed, and the numerical solution agrees well with the measured data. However, for the finite amplitude waves the numerical solution gives no stem wave, while the measured data show clearly stem waves along the wall. In this study, a simple improvement on nonlinear dispersion relationship in REF/DIF S is made. As a result the numerical solution is significantly improved to give good agreements with the measured data. From this study it is found that the stem waves can also be developed for random waves, and the nonlinearity of incident waves is the controlling mechanism for the stem wave development along the wall.

©Coastal Education and Research Foundation, Inc. 2018
Kyung-Ho Ryu, Choong Hun Shin, Jong-In Lee, and Sung Bum Yoon "Nonlinear Interaction of Unidirectional Random Waves along a Vertical Wall," Journal of Coastal Research 85(sp1), 1146-1150, (1 May 2018).
Received: 30 November 2017; Accepted: 10 February 2018; Published: 1 May 2018
laboratory experiments
stem wave
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