Abstract
In this study, the joint effects of submerged vanes and flow expansion on the hydraulic jump are experimentally investigated. Experiments include four expansions and four vane layouts with the Froude number ranging from 4.60 to 8.56. The results show, abrupt expansion and the vanes that are 5 cm apart are the best in dissipating energy, the energy loss increases about 30%, with respect to classical jump. The sequent depths ratio decreased up to 54% and the length of hydraulic jump decreased up to 45%. On the other hand, shear force coefficient shows a relative increase in the transition length of the hydraulic jump. We conclude that using the combination of the vanes and expansion in proper orientation relative to each other can be cost effective in the construction of the stilling basins.
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Data analyzed in this study were a re-analysis of existing data, which are openly available at locations cited in the reference section.
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Sedighi-Harsini, H., Asadi-Aghbolaghi, M., Fattahi-Nafchi, R. et al. Experimental Investigation of the Joint Effect of Flow Expansion and Submerged Vanes on Hydraulic Jump Characteristics. Iran J Sci Technol Trans Civ Eng 46, 3283–3293 (2022). https://doi.org/10.1007/s40996-021-00740-6
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DOI: https://doi.org/10.1007/s40996-021-00740-6