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 : 34th Congress - Brisbane (2011) : THEME 2: Coastal Hydraulics: Form and Function : Three-dimensional numerical analysis of salt-water behavior in the yodo river in case of a tsunami
Three-dimensional numerical analysis of salt-water behavior in the yodo river in case of a tsunami
Author : N. Yoneyama, H. Matsumiya and R. Samejima
Water purification plants are generally located upstream from an estuary weir to avoid drawing salt water. If a significantly large tsunami manages to flow into a river and run up beyond the weir, the purification plant must stop intake because it may draw salt water. Here, a three-dimensional numerical analysis code is presented to predict salt behavior in rivers exposed to a tsunami flow. The main features of this code are as follows: (1) it treats the fluid flow as a three-dimensional density current; and (2) it applies the VOF method to water surface analysis. This code was applied to the Yodo River, Japan, for predicting the chlorine ion concentration that will arise near the Kunijima water purification plant, which draws water from the river, if a significantly large tsunami occurs. Using this code, it was found that the concentration will exceed the drinking water standard for around 1 h and reach 10,000 mg/L at maximum.
File Size : 1,484,805 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 2: Coastal Hydraulics: Form and Function
Date Published : 01/07/2011
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