Benchmark Problem #2
TSUNAMI RUNUP ONTO A COMPLEX THREEE-DIMENSIONAL BEACH
The 1993 Okushiri tsunami caused many unexpected phenomena. One of them was the extreme runup height of 32 m that was measured near the village of Monai in Okushiri Island. This tsunami runup mark was discovered at the tip of a very narrow gulley within a small cove. This benchmark problem is an 1/400 scale laboratory experiment of the Monai runup, using a large-scale tank (205 m long, 6 m deep, 3.4 m wide) at Central Research Institute for Electric Power Industry (CRIEPI) in Abiko, Japan. It is emphasize that the problem is NOT to simulate the runup of the real event, but the laboratory measurements instead. The figures shown below are the bathymetry (figure 1) and coastal topography (figure 2) used in the laboratory experiment. The incident wave from offshore, at the water depth d = 13.5 cm will be given. Note that there are reflective vertical sidewalls at y = 0, and 3.5 m as indicated in bold lines in Fig. 2a. The primary theme of this benchmark problem is the temporal and spatial variations of the shoreline location, as well as the temporal variations of the water-surface variations at one or two specified nearshore locations. Although it is not required, animated presentation for the numerical model will be encouraged.
Download the problem statement,
data file,
input file,
bathymetry file.
Download the experimental data file and video
(Left-click to view data, Right-click to download)
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