Volume 22, Issue 4 (Winter 2019)                   jwss 2019, 22(4): 189-198 | Back to browse issues page

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Yabbarepour E, Shafai Bajestan M, Kashefipour S M. Effect of Triangular Vanes on Mixing Length and Transverse Mixing Coefficient in Straight Channel. jwss 2019; 22 (4) :189-198
URL: http://jstnar.iut.ac.ir/article-1-3500-en.html
1. Department of Hydraulic Structure, Faculty of Water Sciences Engineering, Shahid Chamran University of Ahvaz, Ahwaz, Iran. , e.yabarepoor14@gmail.com
Abstract:   (4094 Views)
Channels and surface water are ways for the transfer of pollutants to the environment and human. When any pollutant is spilled into the channel, the pollutant concentrations are decreased after the travel. Reducing the distance is an engineering expedient. To reduce the distance, mixing in water should be increased. Thus, the main goal of the present study was to investigate the effect of the triangular vane on transverse mixing used for control bank erosion. Experiments were carried out in an 80cm width flume. The vane, which was triangular, was made of Plexi-glass with a 30% width of the flume length, 15cm height and 50cm far from the tracer injection. Salt solution was used as the soluble tracer. The experiment was carried out to investigate the effect of the triangular vane for two conditions: with and without vane. The transverse mixing (ez) and complete mixing length were estimated for the two conditions of with and without vane. The results showed with installing the triangular vane, the transverse mixing was increased up to 2.5 and the length of mixing was decreased by 60%, as compared with the tests of no vane.
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Type of Study: Research | Subject: Ggeneral
Received: 2017/04/24 | Accepted: 2018/01/24 | Published: 2019/03/15

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