IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : 2d3d hybrid numerical analysis on tsunami wave height reduction due to an inverse dam
2d3d hybrid numerical analysis on tsunami wave height reduction due to an inverse dam
Author : YUSUKE SUGANO(1) & NOZOMU YONEYAMA(2)
ABSTRACT
In this study, considering an assumed Nankai Trough Earthquake Tsunami, we calculate and evaluate the effect of tsunami damping according to water elevation behind the Marine Inverse Dam by applying a 2D3DHybrid model. We find that the dam has the measurable effect of declining water elevation, and the height on the coast in its vicinity. The lower the wall the Marine Inverse Dam has, the more effective for tsunami mitigation it is. But we also find that the mitigating effect exists over a comparatively narrow range compared to the large size of the structure. We compute the incoming tsunami from the assumed source, towards the coast with increasing resolution using nested layers. We compare the results from the plane two-dimensional analysis with the 2D3DHybrid analysis to check the difference in the flow around the structure computed using the 3D model. We also checked our results with the Cabinet office analysis for validation.
File Size : 1,069,218 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 18/08/2015
Download Now