Model description of storage and infiltration functions of infiltration facilities for urban runoff analysis by a distributed model

Furumai, H., Jinadasa, H. K. P. K., Murakami, M., Nakajima, F. and Aryal, R. K. (2005) Model description of storage and infiltration functions of infiltration facilities for urban runoff analysis by a distributed model. Water Science and Technology, 52 5: 53-60.

Author Furumai, H.
Jinadasa, H. K. P. K.
Murakami, M.
Nakajima, F.
Aryal, R. K.
Title Model description of storage and infiltration functions of infiltration facilities for urban runoff analysis by a distributed model
Journal name Water Science and Technology   Check publisher's open access policy
ISSN 0273-1223
1996-9732
Publication date 2005
Sub-type Article (original research)
Volume 52
Issue 5
Start page 53
End page 60
Total pages 8
Place of publication London, United Kingdom
Publisher IWA Publishing
Language eng
Abstract Although there have been simulation researches focusing on reduction of stormwater peak flow by introduced infiltration facilities, model simulation of dynamic runoff behavior is still limited for frequently occurring rainfall events with weak intensity. Therefore, dynamic simulation was carried out in two urban drainages with infiltration facilities incorporated with a distributed model using two methods for describing functions of infiltration facilities. A method adjusting effective rainfall model gave poor simulation of runoff behavior in light rainfalls. Another method considering dynamic change of storage capacity as well as infiltration rate gave satisfactory estimation of the runoff in both drainages. In addition, assumption of facility clogging improved the agreement between measured and simulated hydrographs in small and medium-sized rainfall. Therefore, the proposed method might be useful for quantifying the secondary effects of the infiltration facilities on groundwater recharge and urban non-point pollutant trapping as well as runoff reduction.
Keyword Combined sewer
Distributed model
Infiltration facility
Runoff simulation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: ERA 2012 Admin Only
Advanced Water Management Centre Publications
 
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Created: Fri, 10 Feb 2012, 12:42:46 EST by Dr Rupak Aryal on behalf of Advanced Water Management Centre