Does an aerated water jet reduce plunge pool scour?
Abstract
The effect of the air concentration of a water jet on plunge pool scour was investigated by using a simplified experimental configuration. Instead of considering the complete arrangement involving chute and bottom aerators to create an aerated jet, a pre-aerated pressurized flow was produced with a pipe. Discharge of water and air was varied and measured so that air concentration and jet diameter close to impact on the free water surface were known. Three different sediments were tested. The results show clearly that the scour depth reduces with increasing air concentration although scatter is large.
Fields of Study & Subjects
Hydraulic flow and structures
Hydrology and Sediment Transport Processes
Soil erosion and sediment transport
Publication details
- Journal / source
- CRC Press eBooks
- Pages
- 117–124
- Publication date
- 19 January 2026
- Language
- EN
- Document type
- Book chapter