Boussinesq modeling of solitary wave run-up reduction by emergent vegetation on a sloping beach

Yao, Yu; Tang, Zhengjiang; Jiang, Changbo; He, Wenrun; Liu, Zengsheng

doi:10.1016/j.jher.2018.03.001

Cited by 33 publications

(3 citation statements)

References 42 publications

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“…Tang et al (2013) uses the Nonlinear Shallow Water Equations (NSWE) to model effects of solitary wave dissipation due to coastal forest in a sloping bottom. Yao et al (2018) study the dissipation of wave due to vegetation in a sloping beach by using extended Boussinesq. Huang et al (2011) performed physical experiments to investigate dissipation of solitary wave due rigid vegetation in a flume with a flat bottom and followed numerical simulation by using Boussinesq type of model.…”

Section: Physicalmentioning

confidence: 99%

Dissipation of Solitary Wave Due To Mangrove Forest: A Numerical Study by Using Non-Dispersive Wave Model

2019

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In this paper, we study a dissipation of solitary wave due to mangrove forest by using numerical simulation. Here, the solitary wave is chosen to represent tsunami wave form. To simulate the wave dynamic, we use the non-dispersive Nonlinear Shallow Water Equations (NSWE). The model is implemented numerically by using finite volume method in a momentum conservative staggered grid. By using the proposed numerical scheme, the numerical code is able to simulate solitary wave breaking phenomenon. Wave dissipation due to mangrove forest is modelled as bottom roughness with an approximate value of manning roughness, which is derived from the classical Morisson’s formula. To test the modelled dissipation by mangrove forest, we reconstruct a physical experiment in hydrodynamic laboratory where a solitary wave propagates above a sloping bottom, which has a parameterized mangrove in the shallower part. Two cases are performed to test the performance of the numerical implementation, i.e. the non-breaking and breaking solitary waves. Results of simulation agree quite well with the measurement data. The results of simulation are also analyzed quantitatively by calculating errors as well as correlation with the measurement data. Moreover, to investigate effects of wave steepness on solitary wave, to the reduction of wave energy, we perform numerical investigation. Various solitary waves with different wave steepness are simulated to see their effects on amplitude and energy reduction due to mangrove forest.

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Section: Physicalmentioning

confidence: 99%

Dissipation of Solitary Wave Due To Mangrove Forest: A Numerical Study by Using Non-Dispersive Wave Model

2019

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“…Despite their high accuracy, these equations are not entirely practical for modeling since they are complicated and require finer grids to simulate, making them computationally expensive [21]. Another model that could be used is the Boussinesq-type equations [22]- [27]. Solving these equations requires dealing with higher-order derivative terms, which are difficult to handle.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on Wave Run-up to Identify the Most Effective Design of Jakarta’s Outer Sea Dike

Magdalena¹,

Sutjianto²,

Sunaryan³

et al. 2022

International Journal on Advanced Science, Engineering and Information Technology

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The National Capital Integrated Coastal Development (NCICD) is a construction megaproject around Jakarta Bay targeted environmental revitalization and flood mitigation. One of the main projects of NCICD is to develop the Jakarta's outer sea dike to prevent future disasters triggered by the increase of the sea level around Jakarta Bay. In this paper, we aim to assess and optimize the design of Jakarta's outer sea dike by investigating the wave run-up phenomenon, which is measured as the maximum vertical extent of wave uprush on a structure above the still water level. We used the Non-linear Shallow Water Equations (NSWE) as our mathematical model to simulate this phenomenon. The NSWE model was solved numerically using the finite volume method on a staggered grid with a wet-dry procedure to obtain accurate wave run-up height. To validate our numerical scheme, we conducted benchmark tests against a publicized experimental dataset, resulting in a good agreement between the numerical and experimental data, which confirms the robustness and accuracy of our model. We then simulate the wave run-up over three different sea dike profiles: single slope, single berm, and single berm with rocks. Our study shows that among the cases we investigated, the single berm with rocks is the most effective design of the sea dike as even small-sized rock units can significantly reduce the wave run-up height.

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“…Because some features in the tsunami events (such as the stable hump-like waveforms after a long distance of propagation) can be well simulated by solitary waves, lots of experimental, numerical and theoretical investigations on solitary waves have been associated to tsunamis for decades (e.g., Camfield and Street (1969); Goring (1978); Hsiao et al (2008); Liu et al (1995); Lo et al (2013); Seiffert et al (2014); Synolakis (1987); Yao et al (2018a); Yao et al (2018b)).…”

Section: Introductionmentioning

confidence: 99%

Topographic influences on transient harbor oscillations excited by N-waves

Gao

Dong

et al. 2019

Ocean Engineering

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Boussinesq modeling of solitary wave run-up reduction by emergent vegetation on a sloping beach

Cited by 33 publications

References 42 publications

Dissipation of Solitary Wave Due To Mangrove Forest: A Numerical Study by Using Non-Dispersive Wave Model

Dissipation of Solitary Wave Due To Mangrove Forest: A Numerical Study by Using Non-Dispersive Wave Model

Numerical Study on Wave Run-up to Identify the Most Effective Design of Jakarta’s Outer Sea Dike

Topographic influences on transient harbor oscillations excited by N-waves

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