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http://dx.doi.org/10.4491/KSEE.2015.37.11.607

A Study on Hydraulic Modifications of Low-Pressure Membrane Inlet Structure with CFD and PIV Techniques  

Oh, Jeong Ik (LH Institute)
Choi, Jong-Woong (K-water Institute)
Lim, Jae-Lim (K-water Institute)
Kim, Donggil (Department of Civil Engineering and Engineering Research Institute, Gyeongsang National University)
Park, No-Suk (Department of Civil Engineering and Engineering Research Institute, Gyeongsang National University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.37, no.11, 2015 , pp. 607-618 More about this Journal
Abstract
This study was conducted to suggest hydraulic modification for improving evenness of inlet flow distribution into side stream type low-pressure MF (microfiltration) module using CFD (computational fluid dynamics) simulation and PIV (particle image velocimetry) techniques. From the results of CFD simulation for various typed inlet structure, it was investigated that installing internal orifice baffle in inlet the distribution channel could improve the evenness of inlet flow distribution over about 40%. Also, from the results of PIV measurements which were carried out for verifying the CFD simulation, it was observed that the momentum of the water body coming from the opposite side of the inlet was relatively larger. This momentum would generate strong shear force in the near of inlet side wall. On the other hands, occurrence of dead zone and eddy flow was confirmed in the opposite side.
Keywords
Evenness of Flow Distribution; Side Stream Type MF Module; Hydraulic Modification; Computational Fluid Dynamics (CFD); Particle Image Velocimetry (PIV);
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Times Cited By KSCI : 1  (Citation Analysis)
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