Numerical analysis of wave-induced current within the inhomogeneous coral reef using a refined SPH model

The items of investigation include wave induced current, wave height, beach profile, shoreline change, etc. The investigation has been performed seasonally. After the construction of submerged breakwaters, a tombolo was generated behind the submerged breakwaters. This caused beach erosion in the nearby areas. Rip currents are mainly generated near submerged breakwaters, which plays a role in the transportation of sand in the offshore direction. In order to analyze the sand movement, numerical analysis was conducted. The analysis indicated that a strong rip current is generated near submerged breakwaters.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/5p2wiNSMKlM

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Numerical Simulation of Wave Breaking Over a Submerged Step with SPH Method

International Journal of Ocean and Coastal Engineering ◽

10.1142/s2529807018400055 ◽

2018 ◽

Vol 01 (02) ◽

pp. 1840005 ◽

Cited By ~ 1

Author(s):

Hongjie Wen ◽

Bing Ren ◽

Guoyu Wang ◽

Yumeng Zhao

Keyword(s):

Wave Breaking ◽

Sph Method ◽

Vertical Distributions ◽

Sph Model ◽

Smoothed Particle ◽

Mean Water Level ◽

The Mean ◽

Wave Maker ◽

Wave Induced ◽

Smoothed Particle Hydrodynamic

Wave breaking over a submerged step with a steep front slope and a wide horizontal platform is studied by smoothed particle hydrodynamic (SPH) method. By adding a momentum source term and a velocity attenuation term into the governing equation, a nonreflective wave maker system is introduced in the numerical model. A suitable circuit channel is specifically designed for the present SPH model to avoid the nonphysical rise of the mean water level on the horizontal platform of the submerged step. The predicted free surface elevations and the spatial distributions of wave height and wave setup over the submerged step are validated using the corresponding experimental data. In addition, the vertical distributions of wave-induced current over the submerged step are also investigated at both low and high tides.

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Numerical Analysis of Induced Current in Human Head Exposed to Nonuniform Magnetic Field Including Harmonics

IEEJ Transactions on Fundamentals and Materials ◽

10.1541/ieejfms.123.1100 ◽

2003 ◽

Vol 123 (11) ◽

pp. 1100-1107 ◽

Cited By ~ 5

Author(s):

Hiroo Tarao ◽

Noriyuki Hayashi ◽

Katsuo Isaka

Keyword(s):

Magnetic Field ◽

Numerical Analysis ◽

Human Head ◽

Nonuniform Magnetic Field ◽

Induced Current

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RELATION BETWEEN WAVE-INDUCED CURRENT AND ALGAE COMMUNITY ON ARTIFICIAL REEF

PROCEEDINGS OF HYDRAULIC ENGINEERING ◽

10.2208/prohe.46.977 ◽

2002 ◽

Vol 46 ◽

pp. 977-982 ◽

Cited By ~ 1

Author(s):

Kimhito INOUE ◽

Hitoshi TANAKA ◽

Osamu NISHIMURA ◽

Satoshi BABA

Keyword(s):

Artificial Reef ◽

Induced Current ◽

Wave Induced

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Wave-induced abiotic stress shapes phenotypic diversity in a coral reef fish across a geographical cline

Coral Reefs ◽

10.1007/s00338-013-1039-8 ◽

2013 ◽

Vol 32 (3) ◽

pp. 685-689 ◽

Cited By ~ 20

Author(s):

C. J. Fulton ◽

S. A. Binning ◽

P. C. Wainwright ◽

D. R. Bellwood

Keyword(s):

Abiotic Stress ◽

Coral Reef ◽

Reef Fish ◽

Coral Reef Fish ◽

Phenotypic Diversity ◽

Wave Induced

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An Improved SPH Model for Simulating Hydrodynamic Consequences Induced by Reef Degradation

Volume 6A: Ocean Engineering ◽

10.1115/omae2020-18520 ◽

2020 ◽

Author(s):

Yinlin Zhao ◽

Hongjie Wen ◽

Bing Ren ◽

Guoyu Wang ◽

Yongxue Wang

Keyword(s):

Anthropogenic Activities ◽

Low Frequency ◽

Mixture Theory ◽

Natural Disturbance ◽

Two Phase ◽

Frequency Wave ◽

Reef Degradation ◽

Sph Model ◽

Smoothed Particle ◽

Wave Induced

Abstract Coral reefs degradation accelerates in recent decades due to the natural disturbance and anthropogenic activities. It is important to predict and evaluate reasonably the hydrodynamic consequences of reef degradation. An improved weakly compressible smoothed particle hydrodynamic (WCSPH) porous model is developed based on the standard two-phase mixture theory. The developed WCSPH mixture model is validated by comparing the predicted results with the corresponding available data. The model is then adopted to predict the effects of reef degradation on the spatial distributions of wave setup, wave-induced current and low frequency wave energy over the reef-flat under the reef resonance conditions.

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