2023
DOI: 10.1680/jwama.20.00075
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Experimental investigation of dissolved oxygen efficiency in stepped-labyrinth weirs

Abstract: Flow over stepped weirs are characterized by their strong turbulent mixing which enhances the oxygen transfer and dissolved oxygen (DO). This paper investigates the aeration performance of stepped weirs, and in particular, the effects of installation of the labyrinths on the steps, various weir slopes, upstream DO concentrations and tailwater depths. 19 physical models of flat, stepped-labyrinth and pooled-stepped weirs with three different slopes (1:1, 1:2 and 1:3 V: H) were tested. For each configuration, th… Show more

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