MATEC Web Conf.
Volume 95, 20172016 the 3rd International Conference on Mechatronics and Mechanical Engineering (ICMME 2016)
|Number of page(s)||4|
|Section||Applied Mechanics and Dynamics|
|Published online||09 February 2017|
Impact of Village Resistance Values on Simulating Results of Flood Routing in Floodplains
1 Sanjiang Engineering Construction Management Bureau of Heilongjiang Province, Haerbin, China
2 State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, China
2-D hydrodynamic model using unstructured triangular meshes was first established. And the model was verified against the analytical solutions and experimental data of dam-break flows in laboratory. Finally, the model was employed to preliminarily simulate inundated floods routing in Lankao and Dongming floodplains of Lower Yellow River (LYR), and the impact of roughness value in village regions on modeling results was thoroughly analyzed. The results show that the water depth for hollowing village region was largest, and the maximum value of water depth increasing was about 0.57 m. Different roughness values in village region had significant impact on flood routing near village. To be specific, the water depth of n = 0.12 was 0.25m larger than that of n = 0.06, the corresponding flow velocity decreased by 0.24 m/s.
© The Authors, published by EDP Sciences, 2017
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