DONATE

IAHR Document Library


« Back to Library Homepage « Proceedings of the 32nd IAHR World Congress (Venice, 2007)

Modeling of Inundation Flow in Urbanized Area Using a High-Resolution Method with Cartesian Mesh

Author(s): Tatsuhiko Uchida; Yoshihisa Kawahara; Yasushi Ito

Linked Author(s): Yoshihisa Kawahara, Tatsuhiko Uchida

Keywords: Inundation flow; Urban structures; Cartesian coordinate system; Storm surge; CIP scheme; Point and line- and area- averaged values

Abstract: A numerical simulator is developed for inundation flows in urban districts to discuss the effective countermeasures for the mitigation of flood damage. The simulator takes into account the effects of complex geometries on Cartesian coordinate system with a CIP scheme. It is first tested against dam break problems on dry and complex beds. It is demonstrated that the simulator reproduces the flow characteristics even with coarse grids. Then, it is applied to the inundation process occurred in Takehara City due to the storm surge by a typhoon in 2004. The comparison between the calculated results and the flood records reveals that the simulator reproduces the main features of the inundation.

DOI:

Year: 2007

Copyright © 2024 International Association for Hydro-Environment Engineering and Research. All rights reserved. | Terms and Conditions