Coastal Structures and Solutions to Coastal Disasters Joint Conference 2015
Characteristics of a Tsunami Wave Using a Hybrid Tsunami Generator
Publication: Coastal Structures and Solutions to Coastal Disasters 2015: Tsunamis
ABSTRACT
The 2011 Tohoku earthquake tsunami occurred resulting a complex waveform which had never been observed before where slowly and small wave initiated by the first impulsive tsunami wave and increases gradually. Then the water surface elevation rose dramatically and quickly reached its maximum level and was followed by a wave train with high constant height with quite long periods. From this evidence, the paradigm of solitary wave-based tsunami wave representation was categorized as outdated for physical modeling. Therefore, to reproduce the 2011 Tohoku earthquake-like tsunami including a steep wave with very long period or current, a new mechanism of tsunami generation in physical modeling is needed. In this study, we conducted the performance test of a cutting-edge tsunami wave generator, which is equipped with three types of wave generation mechanisms: mechanical piston-type wave generation, head storage tank-driven wave generation, and pump-driven wave generation.
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ACKNOWLEDGEMENTS
This work was financially supported by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) and DPRI Funds. This support is greatly appreciated.
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Published In
Coastal Structures and Solutions to Coastal Disasters 2015: Tsunamis
Pages: 164 - 175
Editors: Louise Wallendorf, U.S. Naval Academy and Daniel T. Cox, Ph.D., Oregon State University
ISBN (Online): 978-0-7844-8031-1
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© 2017 American Society of Civil Engineers.
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Published online: Jul 11, 2017
Published in print: Jul 11, 2017
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