Experiments identifying scour-inducing flow patterns at a gated weir stilling basin
Excessive scour downstream of stilling basins poses significant risk of structural failure. This problem was experimentally investigated at Michigan Technological University in a Froude-scaled, physical model of one such structure operated by the South Florida Water Management District. Detailed flow measurements were taken on a flow scenario that resulted in high scour, namely that of a high flow rate and upstream headwater depth and a low tailwater depth. Equilibrium bed scour and velocity measurements were taken using an Acoustic Doppler Velocimeter. Velocity data was used to construct a vector plot in order to identify which flow components contribute to the scour hole. It was found that downward-plunging flow upon leaving the stilling basin induces the primary scour hole. © 2010 American Society of Civil Engineers.
Geotechnical Special Publication
Experiments identifying scour-inducing flow patterns at a gated weir stilling basin.
Geotechnical Special Publication(210 GSP), 678-687.
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/8738