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Modeling flood disasters: issues concerning data for 2D numerical models

Abdullah, Ahmad Fikri and Vojinovic, Zoran and Meesuk, Vorawit (2016) Modeling flood disasters: issues concerning data for 2D numerical models. In: International Symposium on Civil and Environmental Engineering 2016 (ISCEE 2016), 5-6 Dec. 2016, Novotel Melaka, Melaka, Malaysia. pp. 1-8.

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Flood disasters are one of the worst natural disasters and they occur almost daily. Correspondingly, city managers are nowadays increasingly investing in data collection and modelling activities. Typically, flows in pipes and channels have been modelled using a one-dimensional (1D) approach. Also, if the flood flows on the ground are confined to streets and curbs, the use of 1D/1D modelling approach (a.k.a. as dual drainage concept) may be a feasible way forward. However, if the flows are two-dimensional with complex interactions taking place through surface/sub-surface links, then the required approach would be the so-called 1D/2D modelling approach. The ever-increasing power of computers is now allowing a 3D fluid dynamics analysis of overflow and manhole structures, and in time these may be coupled with 1D models that may be used in situations where flow characteristics require with higher dimensionality. With the use of 2D models, the importance of terrain data has become a growing issue. The current paper discusses some of the key modelling approaches and makes particular reference to the terrain data processing and collection which can either improve or deteriorate their predictive capability.

Item Type:Conference or Workshop Item (Paper)
Keyword:Flood disasters; 2D numerical models; Modelling
Faculty or Institute:Faculty of Engineering
Publisher:EDP Sciences
DOI Number:10.1051/matecconf/201710304008
ID Code:52062
Deposited By: Nabilah Mustapa
Deposited On:05 May 2017 10:33
Last Modified:05 May 2017 10:33

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