|
|||||
|
|
The entrainment of air by water jet impinging on a free surface |
|
| Authors: | Wee King Soh Boo Cheong Khoo W Y Daniel Yuen |
| Institution: | (1) School of Mechanical, Materials & Mechatronics Engineering, University of Wollongong, Northfields Ave, 2522, NSW, Australia;(2) Department of Mechanical and Production Engineering, National University of Singapore, 10 Kent Ridge Crescent, 119260, Singapore;(3) BlueScope Steel Research, PO Box 202, Port Kembla, 2505, NSW, Australia |
| Abstract: | High-speed cine and video photographs were used to capture the flow patterns of a column of water jet impinging into a pool of water. The impact results in air entrainment into water in the form of a void with no mixing between the water in the jet and the surrounding water. Conservation of fluid momentum shows that the rate of increase of the height of the air void depends on the drag coefficient of the jet front. By neglecting the frictional losses, the application of energy conservation yields an expression that relates the maximum height of the air void with the properties of the water jet. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |