Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
Online ISSN : 2185-4688
ISSN-L : 2185-4688
Annual Journal of Civil Engineering in the Ocean Vol.33
TSUNAMI-INDUCED TOPOGRAPHY CHANGE IN COASTAL SEA AREA WITH NARROW PASS AND INFLUENCE OF SHORELINE CONDITION
Tsuyoshi ARIMITSUKoji KAWASAKI
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2017 Volume 73 Issue 2 Pages I_666-I_671

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Abstract
 Hydraulic experiments were carried out in order to analyze sediment transport and bottom topography change due to tsunami and accumulate the validation data of numerical model for coastal sea area with narrow pass. The experimental results revealed that high velocity flow in the narrow pass caused by tsunami passage induces local erosion. Furthermore, it was also found that suspended sand transported near the narrow pass settles down and forms deposition area behind the structure. The comparison of the results for two kind of shorelines, namely overflow and reflection types indicated that the condition of the shoreline has a strong influence on the flow structure and sediment transport induced by tsunami.
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© 2017 Japan Society of Civil Engineers
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