A New Tsunami Numerical Simulation With Boussinesq-Type Equations Applied for the 1983 Nihonkai-Chubu Earthquake Tsunami

Iwase, Hiroyuki; Imamura, Fumihiko

doi:10.1142/9789812703040_0002

Cited by 4 publications

(4 citation statements)

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“…We therefore suggest that the wave-breaking limit u s /c should be set to 0.9 so as not to underestimate the maximum wave height and wave force. The values for k determined here are larger than values reported in previous studies, i.e., c ¼ 0:59 in IWASE et al (2004).…”

Section: (1) Wave Velocitycontrasting

confidence: 83%

“…for plunging breakers. SATO (1996) and IWASE et al (2004) used the parameter ðu s =cÞ as a breaking criteria. This number relates the ratio of surface water particle horizontal velocity u s to wave velocity c. SATO (1996) defined a breaker limit u s =c ¼ 0:4 based on experiments for wind waves in the surf zone.…”

Section: Introductionmentioning

confidence: 99%

“…In this study he let c ¼ ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi gðh þ gÞ p where g is gravitational constant, h is water depth, and g is water surface elevation. IWASE et al (2004) carried out experiments investigating wave soliton fission on a flat bottom to develop a wave-breaking model. By using the velocity of a stable solitary wave he proposed a breaker limit u s /c = 0.59.…”

Section: Introductionmentioning

confidence: 99%

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A Study of Tsunami Wave Fission in an Undistorted Experiment

Matsuyama

Ikeno

Sakakiyama

et al. 2007

Pure appl. geophys.

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To study tsunami soliton fission and split wave-breaking, an undistorted experiment was carried out which investigated tsunami shoaling on a continental shelf. Three models of the continental shelf were set up in a 205-m long 2-dimensional flume. Each shelf model was 100 m, long with slopes of either 1/100, 1/150, or 1/200. Water surface elevations were measured across the flume, including a dense cluster of wave gages installed around the point of wave-breaking. We propose new methods for calculating wave velocity and the wave-breaking criterion based on our interpretation of time series data of water surface elevation. At the point of wave-breaking, the maximum slope of water surface is between 20 to 50 deg., while the ratio of surface water particle horizontal velocity to wave velocity is from 0.5 to 1.2. The values determined by our study are larger than what has been reported by other researchers.

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Section: (1) Wave Velocitycontrasting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Study of Tsunami Wave Fission in an Undistorted Experiment

Matsuyama

Ikeno

Sakakiyama

et al. 2007

Pure appl. geophys.

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“…Fig. 6 shows the tsunami propagation computed by the nonlinear dispersive equation model proposed by Iwase and Imamura (2003). The process of generation of soliton fission waves at the depth of about 8 m by the leading wave of the 1983 Nihonkai-Chubu earthquake tsunami and the breaking of these waves at the depth from 6 to 4 m is presented in the upper diagram.…”

Section: Coast Line In 1970 Not Inundationmentioning

confidence: 99%

Application of Inspect System for the Analysis of Tide, Wave, Tsunami and Storm Surge on the Coasts of Shikoku Island, Japan

Shibaki

Hara

Mimura³

2011

Int. Conf. Coastal. Eng.

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The INSPECT (Integrated Numerical research System for Prevention and Estimation of Coastal disasTer) system was developed for numerical analysis of oceanographical disaster phenomena in coastal and estuarine areas. The INSPECT consists of three numerical simulation models (Wave, Storm Surge and Tsunami models), their supporting sub-systems and supporting databases. With this system, various coastal protection works can be more reliable designed. The paper presents an outline of the design, basic theory of numerical research and applications of the system. The analysis of tide, Wave, Tsunami and storm surge on the coasts of Shikoku Island in Japan is performed by using INSPECT.

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