Revisiting Head Loss of the Perforated Wall with Vertical Slits
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Title
- Revisiting Head Loss of the Perforated Wall with Vertical Slits
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Author(s)
- Chun, Insik; Kang, Hanuel; Lim, Hak Soo
- KIOST Author(s)
- Lim, Hak Soo(임학수)
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Alternative Author(s)
- 임학수
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Publication Year
- 2018-05
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Abstract
- A theoretical analysis and hydraulic experiments were performed to investigate the head loss that occurs when a flow passes through a perforated wall with vertical slits. In the theoretical analysis, continuity and energy equations were applied to a control volume set near the perforated wall. A non-dimensional energy equation was then derived to calculate head loss for the given values of the ratio of upstream and downstream depths and a Froude number based on downstream depth and velocity. The hydraulic experiments were performed by varying flow condition and the opening ratio of perforated walls. The non-dimensional energy equation and experimental results were finally used to evaluate the accuracy of three existing formulas.
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ISSN
- 0749-0208
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/935
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DOI
- 10.2112/SI85-212.1
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Bibliographic Citation
- JOURNAL OF COASTAL RESEARCH, pp.1056 - 1060, 2018
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Publisher
- COASTAL EDUCATION & RESEARCH FOUNDATION
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Subject
- REFLECTION; WAVES
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Keywords
- Perforated wall; Coastal structures; Open channel flow; Flow control; Head loss; Screens; Orifice opening
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Type
- Article
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Language
- English
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Document Type
- Article; Proceedings Paper
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