Abstract
In 2011, Japan suffered from the tsunami that was beyond expectations due to the Tohoku
Earthquake. Therefore, it is necessary to take countermeasures against tsunamis caused by
various factors including landslides. In this study, the three-dimensional fluid-rigid body
coupled analysis method of Yoneyama et al. was applied to a simulation of the past hydraulic
model experiments on tsunamis generated by landslides in order to verify its validity. As a
result, the time-series waveforms and the maximum and minimum water levels of tsunamis
were consistent with those of the experiments in all cases of subaerial landslides. In the case of
submarine landslides, the first wave and the second wave of the time-series waveform roughly
match with those of the experiments. Moreover, the waveform shifts with the passage of time,
and the time-series waveform oscillates in a short cycle.
