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The hydraulic jump is widely used to dissipate energy in hydraulic structures such as weirs, gates and
spillways. The research in the literature investigating the effect of artificially roughened channels on hydraulic jump
properties are limited. This paper presents an experimental study on the effects of roughened channels on hydraulic
jump properties. 30 mm artificial turf was used as a roughness element in channels. 48 experimental tests were
conducted for smooth and artificial turf channels under the same flow conditions. The obtained experimental results for
artificial turf channels were compared to results of smooth channels. The experimental results demonstrated that the
roughness on channels had positive effects on hydraulic jump properties; conjugate depth, hydraulic jump length and
energy dissipation. Reduction in conjugate depth for artificial turf was observed 27% and artificial turf channel reduced
the hydraulic jump length by 25%. Moreover, artificial turf channels 6.5% more energy dissipated than smooth
channels according to test results. Finally, this study showed that artificial turf might be used as an energy dissipater in
hydraulic structures.
International Rating Academy Congress : Applied Sciences
IRAC
Kagan SÖĞÜT