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http://dx.doi.org/10.11001/jksww.2013.27.4.469

Evaluation of Hydraulic Behavior within Parallel arranged Upflow Sedimentation Basin Using CFD Simulation (I) - The influence of feed water inequity-  

Park, No-Suk (Gyeongsang National University)
Kim, Seong-Su (K-water)
Choi, Jong-Woong (K-water)
Sung, Youl-Boong (Research Institute of Industrial Science & Technology)
Kang, Moon-Sun (Kolon Global)
Publication Information
Journal of Korean Society of Water and Wastewater / v.27, no.4, 2013 , pp. 469-477 More about this Journal
Abstract
In order to investigate the influence of feed water inequity on the settling performance for parallel arranged upflow sedimentation basin in domestic G_WTP(Water Treatment Plant), CFD(Computational Fluid Dynamics) simulation were employed and ADV(Acoustic Doppler Velocimeter) measurements were carried out. From the results of both CFD simulations and ADV measurements, the differences among inlet flow rates to each inlet structure make turbulent energy dissipation uneven overall sedimentation basin. Especially local velocities in the near of both side wall were observed over the design overflow rate(74.4 mm/min). Also, it was confirmed that this inequity of inlet flow would exert an serious influence on the turbidity of settled water which is out from 8 troughs. Even though experimental velocities in full scale basin about 20% higher than the simulated, the results of ADV measurement were in good accordance with those of CFD simulations.
Keywords
CFD(Computational Fluid Dynamics); ADV(Acoustic Doppler Velocimeter); Parallel arranged upflow sedimentation basin; flow rate inequity;
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