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Discharge coefficient of a rectangular labyrinth weir

Kabiri Samani, A ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1680/wama.11.00088
  3. Publisher: 2013
  4. Abstract:
  5. A rectangular labyrinth weir has a very good flood release capacity as well as strong economical and structural advantages. In this study, combined analytical and experimental investigations were undertaken for a rectangular labyrinth weir. The analytical model is based on the synthesis of general weir equations and spatially varied flow dynamic equations. A comprehensive set of experiments led to characterisation of the flow behaviour for low and high heads over the weir and indicated the influences of weir geometry on the release capacity. The results show that this type of weir represents an effective weir alternative and could be five times more efficient than a corresponding traditional broad-crested weir. These types of weirs may thus find great use in water and dam engineering projects. An equation for the free-flow discharge coefficient of a rectangular labyrinth weir is presented
  6. Keywords:
  7. Broad-crested weir ; Dam engineering ; Discharge coefficients ; Experimental investigations ; Flow behaviours ; Rectangular labyrinth weirs ; Spatially varied flow ; Structural advantage ; Hydraulic structures ; Weirs ; Civil engineering ; Dam construction ; Discharge ; Experimental study ; Flow modeling ; Free surface flow ; Geometry ; Weir
  8. Source: Proceedings of the Institution of Civil Engineers: Water Management ; Volume 166, Issue 8 , September , 2013 , Pages 443-451 ; 17417589 (ISSN)
  9. URL: http://www.icevirtuallibrary.com/doi/abs/10.1680/wama.11.00088?journalCode=jwama