FPGA Based Tsunami Wave Propagation Calculator

Research output: Contribution to journalConference articlepeer-review

Abstract

The authors continue to use hardware acceleration to calculate tsunami wave propagation in a few seconds at modern PC. The goal of this work is to develop original implementation the FPGA-based algorithm for nested-grids computations of tsunami wave propagation. The FPGA-based Calculator, for regular grid has been proposed and numerically tested earlier. Use of the nested grid approach makes it possible to calculate wave propagation almost until the shore line. Numerical tests are based on the real digital bathymetry at southern part of Japan. Mesh step variation of the gird is from 180 m to just 7 m. Realistic shape of the initial sea surface displacement at tsunami source was used. The detailed distribution of wave height maxima around and inside the Onahama port have been issued as a result of tsunami generated by a model source located along the Japan deep-water trench. The superfast FPGA calculator provides an opportunity to obtain the calculated wave parameters inside ports and harbours even before arrival of tsunami wave.

Original languageEnglish
Article number012011
JournalJournal of Physics: Conference Series
Volume1789
Issue number1
DOIs
Publication statusPublished - 9 Mar 2021
Event2020 9th International Conference on Engineering Mathematics and Physics, ICEMP 2020 - Istanbul, Virtual, Turkey
Duration: 1 Jul 20204 Jul 2020

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY

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