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Experimental Study of Characteristics of Flow over Weirs with Semicircular Openings

  • Research Article - Civil Engineering
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Abstract

In this research, an experimental investigation was conducted to study the characteristics of flow over weirs with semicircular openings. Four radii of the weir openings were used and three crest heights with either a sharp or semicircular shape for each radius. The results show that for the same crest height and the same depth of water over the crest, the discharge passing over the weir increased with the increasing radius of the semicircular opening. Also, for the same radius of the weir opening and the same depth of water over the crest, the discharge passing over the weir increased with the increasing crest height. For measuring the actual discharge over the weirs with semicircular openings, a new and reliable empirical equation was developed for the weirs with sharp crests and another one for weirs with semicircular crests.

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Authors and Affiliations

  1. Environmental Engineering Department, University of Tikrit, Tikrit, Iraq

    Raad H. Irzooki

  2. Department of Civil Engineering, University of Malaya, Kuala Lumpur, Malaysia

    Shatirah Mohamed Akib

  3. Structural Engineer, CRN, Engineering Services, John Holland Group Pty Ltd, Sydney, NSW, 2150, Australia

    Moatasem M. Fayyadh

Authors
  1. Raad H. Irzooki
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  2. Shatirah Mohamed Akib
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  3. Moatasem M. Fayyadh
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Correspondence to Moatasem M. Fayyadh.

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Irzooki, R.H., Akib, S.M. & Fayyadh, M.M. Experimental Study of Characteristics of Flow over Weirs with Semicircular Openings. Arab J Sci Eng 39, 7599–7608 (2014). https://doi.org/10.1007/s13369-014-1360-8

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  • DOI: https://doi.org/10.1007/s13369-014-1360-8

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