Vazhenin A.   Marchuk A.   Hayashi K.  

Optimization of anti-wave protection of port water areas using numerical simulations

Reporter: Vazhenin A.

Numerical models for tsunami propagation use two types of boundary conditions: fully reflective (at a coastline) and open (providing a free exit of a wave off the computational domain). Basing on numerical modeling of the long wave propagation, the new algorithm has been developed implementing the partial reflection of the wave energy by a submerged barrier. The proposed method uses the inner boundary condition just behind a submerged vertical barrier. The results, obtained after the one-dimensional modeling of wave propagation over such a barrier demonstrates a good correlation with laboratory experiments in a flume [1]. Integrating with the original digital bathymetry editor [2], the algorithm allows determining the optimal size, position and height of the proposed construction mitigating the tsunami impact on crucial objects at a shore. The algorithm proposed was implemented as applied to some harbors and ports of the north-east coast of Japan.


1.     Fridman A. M., Alperovich L. S., Shemer L., Pustil’nik L., Shtivelman D., Marchuk A. G., Liberzon D. Tsunami wave suppression using submarine barriers // Physics-Uspekhi, 2010, V. 53 (8), P. 809–816.

2.     Hayashi K., Vazhenin A., Marchuk A. Source Data and Bathymetry Editor in Tsunami Modeling Environment // New Trends in Software Methodologies, Tools and Techniques, 2016, V. 286, P. 235-245.

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