Two-dimensional urban flood simulation: Fukuoka flood disaster in 1999

H. Hashimoto, K. Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Short-time heavy rains occurred in Fukuoka City, Japan on June 29, 1999. As a result, the Mikasa and Sanno-Channel rivers overflowed their banks and the flooding water moved down roads to the railway station known as 'Hakata-eki'. This area is a dense city centre with many houses and office buildings. The purpose of the present study is to develop a two-dimensional flood simulation model in dense urban areas. The flood simulation model of Hashimoto et al. (Overland flood flow around the JR Hakata-eki station from the Mikasa and Sanno-Channel river in Fukuoka city on June 29, 1999, J. JSNDS 21-4, pp. 369-384, 2003 (in Japanese)) is introduced. The model considers the effect of the high density of buildings and houses on the flood flow in momentum and continuum equations. The momentum equations include two kinds of resistance terms. One is due to bottom shear stresses and the other due to drag forces on the buildings and houses. The continuum equation includes the area density of buildings and houses as their effect on flood flow. This flood simulation model is applied to the Fukuoka flood disaster in 1999. The behaviour of the flood flow from the rivers is computed for various values of the roughness coefficient for the Manning equation and drag coefficient for buildings and houses. The value of 0.043 is suitable for Manning's roughness coefficient and that of 2.05 for the drag coefficient.

Original languageEnglish
Title of host publicationFlood Recovery, Innovation and Response
PublisherWITPress
Pages59-67
Number of pages9
Volume118
ISBN (Print)9781845641320
DOIs
Publication statusPublished - Jan 1 2008
EventInternational Conference on Flood Recovery, Innovation and Response, FRIAR 2008 - London, United Kingdom
Duration: Jul 2 2008Jul 3 2008

Other

OtherInternational Conference on Flood Recovery, Innovation and Response, FRIAR 2008
CountryUnited Kingdom
CityLondon
Period7/2/087/3/08

Fingerprint

disaster
simulation
drag coefficient
river channel
roughness
momentum
bottom stress
drag
shear stress
flooding
urban area
road
river

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)

Cite this

Hashimoto, H., & Park, K. (2008). Two-dimensional urban flood simulation: Fukuoka flood disaster in 1999. In Flood Recovery, Innovation and Response (Vol. 118, pp. 59-67). WITPress. https://doi.org/10.2495/FRIAR080061

Two-dimensional urban flood simulation : Fukuoka flood disaster in 1999. / Hashimoto, H.; Park, K.

Flood Recovery, Innovation and Response. Vol. 118 WITPress, 2008. p. 59-67.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hashimoto, H & Park, K 2008, Two-dimensional urban flood simulation: Fukuoka flood disaster in 1999. in Flood Recovery, Innovation and Response. vol. 118, WITPress, pp. 59-67, International Conference on Flood Recovery, Innovation and Response, FRIAR 2008, London, United Kingdom, 7/2/08. https://doi.org/10.2495/FRIAR080061
Hashimoto H, Park K. Two-dimensional urban flood simulation: Fukuoka flood disaster in 1999. In Flood Recovery, Innovation and Response. Vol. 118. WITPress. 2008. p. 59-67 https://doi.org/10.2495/FRIAR080061
Hashimoto, H. ; Park, K. / Two-dimensional urban flood simulation : Fukuoka flood disaster in 1999. Flood Recovery, Innovation and Response. Vol. 118 WITPress, 2008. pp. 59-67
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