Experimental investigation of energy dissipation through inclined screens

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Date

2004

Author

Balkış, Görkem

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The main goal of the present study is to investigate the energy dissipation through inclined screens. Recent studies have shown that screens arranged vertically may dissipate more energy than a hydraulic jump does below small hydraulic structures. In the present study a series of laboratory experiments were performed in order to determine the effect of inclination of the screen on the energy dissipated by the screen. The porosity of the screen used in the experiments is 40%. Inclination angle, thickness of the screen, location of the screen, upstream flow depth, and the Froude number of the upstream flow are the major parameters for the laboratory experiments. Froude number of the upstream flow covered a range of 5 to 24. A screen was located up to a distance 100 times the undisturbed upstream flow depth from the gate and the thickness of the screen was changed in correlation with the depth of upstream flow. The results of the experiments show that the inclination parameter has an insignificant effect on the energy dissipated by the screen. Namely, inclination of the screen does not contribute much in reducing the energy of the flowing water further, compared to vertically placed screens.

Subject Keywords

Hydraulic engineering.

URI

http://etd.lib.metu.edu.tr/upload/12605384/index.pdf
https://hdl.handle.net/11511/14455

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

G. Balkış, “Experimental investigation of energy dissipation through inclined screens,” M.S. - Master of Science, Middle East Technical University, 2004.