MODELING THE TRANSFORMATION OF NONLINEAR WAVES PASSING OVER A SUBMERGED DIKE

Takumi Ohyama; Kazuo Nadaoka

doi:10.9753/icce.v23.%p

No. 23 (1992), Conference Proceedings

No. 23 (1992)

MODELING THE TRANSFORMATION OF NONLINEAR WAVES PASSING OVER A SUBMERGED DIKE

Conference Proceedings

https://doi.org/10.9753/icce.v23.%25p

Published 1992-01-29

Takumi Ohyama⁺⁻
Kazuo Nadaoka⁺⁻

Takumi Ohyama

Institute of Technology, Shimizii Corporation

Kazuo Nadaoka

Department of Civil Engineering, Tokyo Institute of Technology

PDF

Keywords

dike
submerged dike
nonlinear waves
wave modeling
wave transformation

How to Cite

Ohyama, T., & Nadaoka, K. (1992). MODELING THE TRANSFORMATION OF NONLINEAR WAVES PASSING OVER A SUBMERGED DIKE. Coastal Engineering Proceedings, 1(23). https://doi.org/10.9753/icce.v23.%p

Abstract

The decomposition phenomenon of a nonlinear wave train passing over a submerged dike has been investigated by a previously developed numerical model. The model, based on the time-dependent boundary element method, employs an effective nonreflective open boundary treatment and can be applied to arbitrary nonlinear wave processes. The results for regular wave incidence indicate that the higher harmonics generated during passage over the dike are transformed into prominent free waves in the trailing side of the dike, revealing the essential mechanism of the observed decomposition phenomenon. The computed wave profiles at various locations agree favorably with experimental observations. The transformation of multicomponent random waves has also been investigated. The results show that a substantial amount of wave energy is transferred into higher frequency components. The power spectrum of the transmitted wave is found to be significantly influenced by the phase differences among the incident components as well as by the incident wave spectrum itself.

https://doi.org/10.9753/icce.v23.%25p

PDF

Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.

Most read articles by the same author(s)

Hiroshi Yagi, Hirofumi Hinata, Kazuo Nadaoka, VELOCITY FIELD MEASUREMENTS IN A "COASTAL BUFFER ZONE" , Coastal Engineering Proceedings: No. 25 (1996): Proceedings of 25th Conference on Coastal Engineering, Orlando, Florida, 1996.
Jun Mitsui, Akira Matsumoto, Minoru Hanzawa, Kazuo Nadaoka, STABILITY OF ARMOR UNITS COVERING RUBBLE MOUND OF COMPOSITE BREAKWATERS AGAINST A STEADY OVERFLOW OF TSUNAMI , Coastal Engineering Proceedings: No. 34 (2014): Proceedings of 34th Conference on Coastal Engineering, Seoul, Korea, 2014
Isao Irie, Kazuo Nadaoka, LABORATORY REPRODUCTION OF SEABED SCOUR IN FRONT OF BREAKWATERS , Coastal Engineering Proceedings: No. 19 (1984): Proceedings of 19th Conference on Coastal Engineering, Houston, Texas, 1984.
Kazuo Nadaoka, Seizo Ueno, Tatsuyuki Igarashi, SEDIMENT SUSPENSION DUE TO LARGE SCALE EDDIES IN THE SURF ZONE , Coastal Engineering Proceedings: No. 21 (1988): Proceedings of 21st Conference on Coastal Engineering, Torremolinos, Spain, 1988.
Kazuo Nadaoka, Serdar Beji, Yasuyuki Nakagawa, A FULLY-DISPERSIVE NONLINEAR WAVE MODEL AND ITS NUMERICAL SOLUTIONS , Coastal Engineering Proceedings: No. 24 (1994): Proceedings of 24th Conference on Coastal Engineering, Kobe, Japan, 1994.
Masahiro Tanaka, Takumi Ohyama, Tetsushi Kiyokawa, Takaaki Uda, Atsushi Omata, CHARACTERISTICS OF WAVE DISSIPATION BY FLEXIBLE SUBMERGED BREAKWATER AND UTILITY OF THE DEVICE , Coastal Engineering Proceedings: No. 23 (1992): Proceedings of 23rd Conference on Coastal Engineering, Venice, Italy, 1992.
Kazuo Nadaoka, Mikio Hino, CONPORMAL MAPPING SOLUTION OP A WAVE FIELD ON THE ARBITRARILY SHAPED SEA BOTTOM , Coastal Engineering Proceedings: No. 19 (1984): Proceedings of 19th Conference on Coastal Engineering, Houston, Texas, 1984.
Kazuo Nadaoka, Osafumi Ono, TIME-DEPENDENT DEPTH-INTEGRATED TURBULENCE MODELING OF BREAKING WAVES , Coastal Engineering Proceedings: No. 26 (1998): Proceedings of 26th Conference on Coastal Engineering, Copenhagen, Denmark, 1998.
Takao Toue, Kazuo Nadaoka, Hidehiro Katsui, ASYMMETRIC BOUNDARY LAYER FLOW ABOVE SAND RIPPLES UNDER PROGRESSIVE WAVES , Coastal Engineering Proceedings: No. 25 (1996): Proceedings of 25th Conference on Coastal Engineering, Orlando, Florida, 1996.
Takao Toue, Hidehiro Katsui, Kazuo Nadaoka, MECHANISM OF SEDIMENT TRANSPORT AROUND A LARGE CIRCULAR CYLINDER , Coastal Engineering Proceedings: No. 23 (1992): Proceedings of 23rd Conference on Coastal Engineering, Venice, Italy, 1992.

1 2 > >>

MODELING THE TRANSFORMATION OF NONLINEAR WAVES PASSING OVER A SUBMERGED DIKE

Keywords

How to Cite

Download Citation

Abstract

Most read articles by the same author(s)