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Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received July 19, 2010
Accepted June 21, 2011

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Physical modifications to improve a channel’s flow distribution

An-Kyu Lee No-Suk Park^1† Suhan Kim² Nam Kim³

K-Water Institute, Korea Water Resources Corporation (K-Water), 462-1, Jeonmin-dong, Yusung-gu, Daejeon 305-730, Korea ¹Water Research Center, K-Water Institute, Korea Water Resources Corporation (K-Water), 462-1, Jeonmin-dong, Yusung-gu, Daejeon 305-730, Korea ²Department of Civil Engineering, Pukyong National University, San 100, Yongdang-dong, Nam-gu, Busan 608-739, Korea ³Division of Electrical and Computer Engineering, Chungbuk National University, Cheongju 361-763, Korea

nspark@kwater.or.kr

Korean Journal of Chemical Engineering, February 2012, 29(2), 201-208(8), 10.1007/s11814-011-0163-9

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Abstract

A modified approach is suggested to achieve even flow distribution (i.e., the equality of flow distribution) in an open channel in water treatment plant. The suggested approach includes installing a longitudinal baffle with orifices in the main flow direction. To evaluate the efficiency of suggested model, both computational fluid dynamics (CFD) model and pilot tests were carried out. The pilot tests, which were scaled down to 1/8 of full scale, showed that the equalities of the flow distributions in the modified channels were up to 30% higher compared to those in the conventional channel when the equalities were quantified using the standard deviation of the flow distributions. In addition, the velocity contours computed by numerical simulation in the conventional full scale channel were compared with the velocity contours in the remodeled channel in order to verify the more even flow distribution in the modified one than that in the conventional one.

Keywords

Equality of Flow Distribution Distribution Channel CFD (Computational Fluid Dynamics) Pilot Test

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