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Researchers:

  • Assoc. Prof. Dr. Rozi Abdullah <This email address is being protected from spambots. You need JavaScript enabled to view it.>

  • Assoc. Prof. Aminuddin Ab Ghani <This email address is being protected from spambots. You need JavaScript enabled to view it.>

  • Prof. Nor Azazi Zakaria <This email address is being protected from spambots. You need JavaScript enabled to view it.>

  • Mr Lau Tze Liang <This email address is being protected from spambots. You need JavaScript enabled to view it.>

  • Mr Mohd Fazly Yusof <This email address is being protected from spambots. You need JavaScript enabled to view it.>

  • Ms Anita Ainan <This email address is being protected from spambots. You need JavaScript enabled to view it.>

 

The objectives of the study are: 

  • To determine engineering parameters for design of ecological drainage system

  • To determine hydraulic capacity of  ecological drainage system

  • To investigate effectiveness of ecological drainage system in peak discharge control

 

The project’s major project achievements are the verification of Manning’s n values for bio-retention swales, calibration of required parameters for SWMM modeling, and confirmation of swale capability in flow attenuation for various rainfall events.  The results confirm the flow retarding effect of swale due to the presence of grass along its boundary.  The application of swale as one of “control-at-source” methods is established over a five-year period (2003 – 2007) during various rainfall events covering 1-yr, 2-yr, 5-yr, 10-yr and 50-yr events.

 

Publications:

  • Ab. Ghani, A., Zakaria, N.A., Abdullah, R., Yusof, M. F., Mohd Sidek, L., Kassim, A. H. & A. Ainan. (2004). Bio-Ecological Drainage System (BIOECODS): Concept, Design and Construction. 6th International Conference on Hydroscience and Engineering (ICHE-2004), May 30-June 3, Brisbane, Australia <Download> 

  • Ainan, A., Zakaria, N.A., Ab. Ghani, A., Abdullah, R., Mohd Sidek, L., Yusof, M. F. & Wong, L.P. (2004). Peak Flow Attenuation Using Ecological Swale and Dry Pond. 6th International Conference on Hydroscience and Engineering (ICHE-2004), May 30-June 3, Brisbane, Australia <Download> 

  • Abdullah, R., Zakaria, N.A., Ab. Ghani, A., Mohd Sidek, L., Ainan, A. & Wong, L.P.(2004). BIOECODS Modelling Using SWMM. 6th International Conference on Hydroscience and Engineering (ICHE-2004), May 30-June 3, Brisbane, Australia <Download>

 

SWMM thumbnailSWMM Modeling Result

 

Observed Values of Manning’s n for Station A (Swale Type B)

Date Flow Depth(m) Velocity, V
(m/s)		 Discharge, Q
(m3/s)		 Manning’s n
26.09.2006 0.40 0.078 0.059 0.137
11.11.2006 0.47 0.096 0.087 0.119
15.11.2006 0.31 0.057 0.027 0.150
08.12.2006 0.50 0.106 0.100 0.114

 

     GrafVariation of Manning n

 

test rig thumbnail       test h1 thumbnail       test g1 thumbnail
Test Rig for Sub-drainage component   Sub-drainage component   Experimental Work
TypeA thumbnail   TypeB thumbnail   Measurement thumbnail
Discharge measurement station (Site A)   Discharge measurement station (Site B)   Flow discharge measurement