| Issue |
E3S Web Conf.
Volume 40, 2018
River Flow 2018 - Ninth International Conference on Fluvial Hydraulics
|
|
|---|---|---|
| Article Number | 05042 | |
| Number of page(s) | 8 | |
| Section | Fluid mechanics and sediment processes | |
| DOI | https://doi.org/10.1051/e3sconf/20184005042 | |
| Published online | 05 September 2018 | |
Numerical analysis of flood with a double grid model
1
Graduate School of Engneering, Hokkaido University, Hydraulic Research Laboratory, Japan
2
Faculty of Engineering, University of Toyama, Japan
* Corresponding author: go-go@eis.hokudai.ac.jp
The objective of this study is to verify the validity of a hyper grid type (double grid model) computational model, for calculating flood flows with inundations. Nowadays, detailed information of the bathymetry is available due to improved measurement techniques, such as LP data. However, the number of grid cells used in the computation is limited because of the limitation of computational infrastructures. A double grid approach based on the model proposed by Volp et. al.(2013) is employed to overcome this problem.This model directly uses the high resolution topographic data though the discretization of the governing equations are made on coarser grid. The computational results showed that the present numerical model can compute the large scale flood phenomena efficiently and accurately.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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