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JDR Vol.7 No.5 pp. 554-559
(2012)
doi: 10.20965/jdr.2012.p0554

Paper:

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Urban Flood Inundation Model for High Density Building Area

Mohammad Farid*, Akira Mano**, and Keiko Udo**

*Water Resources Engineering Research Group, Institut Teknologi Bandung, Jalan Ganesha 10 Bandung 40132, Indonesia

**Disaster Control Research Center, Graduate School of Engineering, Tohoku University, 6-6-11 Aoba Aramaki Aoba-ku, Sendai 980-8579, Japan

Received:
July 11, 2012
Accepted:
September 8, 2012
Published:
October 1, 2012
Creative Commons License
Keywords:
urban flood, inundation model, building sharing rate, Indonesia
Abstract
In this paper, the development of a flood inundation model considering the effect of buildings in dense urban areas is purposed. A 2D overland flow model is coupled with a 1D channel model to simulate flood inundation with an exchange of flow between rivers and surface floodplains. The momentum equation in the overland flow model is modified in order to consider urban flood characteristics. The “sharing rate,” which is defined as the occupancy area of building in each grid of a model domain, is applied to represent the effect of a building Drag force that occurs due to the reaction of force acting on a building is included. Hydrological processes are accommodated by combining a tank model in outsource terms. The model is applied to the downstream part of the Ciliwung River basin where Jakarta, the capital city of Indonesia, is located. Results regarding the water level and inundation map are compared with observed data and show fair agreement.
Cite this article as:
M. Farid, A. Mano, and K. Udo, “Urban Flood Inundation Model for High Density Building Area,” J. Disaster Res., Vol.7 No.5, pp. 554-559, 2012.
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