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.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 8 - CLIMATE CHANGE AND HAZARD MITIGATION : Development of Hybrid 2D-3D Numerical Analysis and its Application to the Inundation of the 2011 off...
Development of Hybrid 2D-3D Numerical Analysis and its Application to the Inundation of the 2011 off the Pacific Coast of Tohoku Earthquake Tsunami in Kamaishi Bay
Author : William Pringle and Nozomu Yoneyama
Given the extreme damages caused by tsunami in the past decade it is essential that the inundation tsunami behavior is understood in greater detail. Numerical analyses can provide such knowledge however the information on its behavior around structures within ports and cities may be limited with traditional 2D models. In light of this, and considering the heavy computational burden of 3D models, this study applies a hybrid 2D-3D numerical model, that tightly couples the 2D nonlinear shallow water equations and a 3D RANS based VOF model, to the large scale simulation of the 2011 off the Pacific Coast of Tohoku Earthquake Tsunami in Kamaishi Bay. The simulation results are verified with survey data at 71 locations along the coastline and it is found the model could predict maximum inundation heights with a mean error of -7.2%. Furthermore, comparison with velocity fields obtained in a quasi-3D analysis show that the hybrid model is able to produce significant difference in flow field patterns in the 3D calculation domain. 1 2 3 4 5
File Size : 1,473,440 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Article : THEME 8 - CLIMATE CHANGE AND HAZARD MITIGATION
Date Published : 20/07/2016
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