In this study, variation of hydraulic jump characteristics including jump length and secondary depth and the variation of the effective length of roughness in relation to the wave length were studied. For this purpose, the characteristics of hydraulic jump under four different wave lengths and four different Froude numbers were experimentally determined. Totally, 84 tests have been carried out in the range of Froude numbers from 5.84 to10.13 in a flume with length of 12 m , width of 40 cm, and height of 40 cm. The results showed that the characteristics of hydraulic jump such as length of jump and secondary depth declines as the length of roughness increases. It was also found that, the effective roughness length on the secondary depth increases as the wave length increases, but the effect of roughness length on the length of jump is reverse. Regarding the derived relationships, the optimum dimensionless wave length was obtained to be 4.5.
Bazzaz, M., Ghorbani, B., & Eskini, M. (2012). Investigation of the Effect of Roughness Wave Length on the Hydraulic Jump Characteristics of Roughened bed. Journal of Hydraulics, 7(3), 33-42. doi: 10.30482/jhyd.2012.85347
MLA
M. Bazzaz; B. Ghorbani; M. Eskini. "Investigation of the Effect of Roughness Wave Length on the Hydraulic Jump Characteristics of Roughened bed". Journal of Hydraulics, 7, 3, 2012, 33-42. doi: 10.30482/jhyd.2012.85347
HARVARD
Bazzaz, M., Ghorbani, B., Eskini, M. (2012). 'Investigation of the Effect of Roughness Wave Length on the Hydraulic Jump Characteristics of Roughened bed', Journal of Hydraulics, 7(3), pp. 33-42. doi: 10.30482/jhyd.2012.85347
VANCOUVER
Bazzaz, M., Ghorbani, B., Eskini, M. Investigation of the Effect of Roughness Wave Length on the Hydraulic Jump Characteristics of Roughened bed. Journal of Hydraulics, 2012; 7(3): 33-42. doi: 10.30482/jhyd.2012.85347