Author(s): Masayuki Takahashi; Iwao Ohtsu
Linked Author(s): Iwao Ohtsu, Masayuki Takahashi
Keywords: No Keywords
Abstract: This paper presents the effect of inflow conditions on air entrainment in the hydraulic jump. It was found experimentally that the values of void fraction for the jump with a fully developed inflow condition are larger than those for the jump with a partially developed and an undeveloped inflow condition under given inflow Froude number and Reynolds number. In the jump with the undeveloped and partially developed inflow conditions, the jet entering the jump is similar to the wall jet, while in the jump with the fully developed inflow condition, the entering jet is lifted upward, which may be due to buoyancy of air bubbles.
Year: 2009