Experimental Investigation of Energy Dissipation in Hydraulic Jump: A Comparison of Weir and Level Bedded Constricted Flume
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2018 by IJETT Journal|
|Year of Publication : 2018|
|Authors : E. G. Ewah, E. E. Nyah, R. E. E. Antigha and J. G. Egbe
|DOI : 10.14445/22315381/IJETT-V61P202|
MLA Style: E. G. Ewah, E. E. Nyah, R. E. E. Antigha and J. G. Egbe"Experimental Investigation of Energy Dissipation in Hydraulic Jump: A Comparison of Weir and Level Bedded Constricted Flume" International Journal of Engineering Trends and Technology 61.1 (2018): 6-13.
APA Style:E. G. Ewah, E. E. Nyah, R. E. E. Antigha and J. G. Egbe, (2018). Experimental Investigation of Energy Dissipation in Hydraulic Jump: A Comparison of Weir and Level Bedded Constricted FlumeInternational Journal of Engineering Trends and Technology, 61(1), 6-13.
Hydraulic jumps are common occurrences in open channels due to transition of flows from supercritical flow to a subcritical or tranquil one. A flow transition will occur when there is a change in the channel depth or width. As a result of flow transition in an open channel with flowing liquid, a lot of energy of the flowing liquid is dissipated mostlyin the form of heat (Tran, 2011). In most open channels with flowing liquid like rivers, dams and spillways, etc., the hydraulic jumps found are similar to standing waves that can be used as chemical mixers or pollution control aerators because of the considerableamountofair emission that accompanies the jumps (Jalil Sarhan and Yaseen, 2015). This paper experimentally investigates energy dissipation in hydraulic jump (a comparison of weir and level-bedded constricted flume). The experiments were carried out on the horizontal open channel provided in the fluid mechanics/hydraulic laboratory of the CrossRiver University of Technology, Calabar- Nigeria. On the whole, the experiment results show thatthere was flow continuity since the discharge through any point of the channel is approximately equal.In an open channel hydraulic jump actually occurs only when there is flow continuity and when a flowing liquid transitsfrom supercritical flow to subcritical one. Hydraulic jump resulting from a weir dissipates more energy than that caused by a level-bedded constricted flume. The inflow Froude number
 Tran, T. A. (2011). Experiments in turbulent soap-film flows: Marangoni shocks, frictional drag, and energy spectra: University of Illinois at Urbana-Champaign.
 Jalil, S. A., Sarhan, S. A., & Yaseen, M. S. (2015). Hydraulic Jump Properties Downstream a Sluice Gate with Prismatic Sill. Research Journal of Applied Sciences, Engineering and Technology, 11(4), 447-453.
 Li, C.-F. (1995). Determining the location of hydraulic jump by model test and HEC-2 flow routing. Ohio University.
 Abrahams, A. D., Li, G., & Atkinson, J. F. (1995). Step?pool streams: Adjustment to maximum flow resistance. Water Resources Research, 31(10), 2593-2602.
 Chanson, H. (2009). Development of the Bélanger equation and backwater equation by Jean-Baptiste Bélanger (1828). Journal of Hydraulic Engineering, 135(3), 159-163.
 Leutheusser, H. J., &Birk, W. M. (1991).Drownproofingof low overflow structures.Journal of Hydraulic Engineering, 117(2), 205-213.
 Te Chow, V. (1959). Open-channel hydraulics (Vol. 1): McGraw-Hill New York.
 7. Leutheusser, H. J., & Fan, J. J. (2001). Backward flow velocities of submerged hydraulic jumps. Journal of Hydraulic Engineering, 127(6), 514-517.
Open Channel, Hydraulic jump, Froude Number, Weir, Flume, Specific Energy.