Hydraulics/Hydrology CE Seminar Series
Horizontal Shear Boundary Layers & Scour: An Exploratory Study Using Photogrammetry
Barnard S. Mondal
Tuesday, September 1, 2015
Horizontal shear boundary layers, such as at the confluence of two rivers, introduce uncertainties to scour formations in open channel beds. Though shear boundary layers have been studied both in laboratories and in field experiments, channel scour caused by horizontal shear boundary layers have yet to be explored. The proposed experimental study seeks to explore the characteristics of scour in a flume sand bed with simple split flow conditions. An eight-foot long divider will separate a fixed-bed channel with flow and a channel with no flow. At the end of the outlet of the fixed-bed channels is a sand bed, which scours given the velocity of the flow is beyond critical. The experiment utilizes photogrammetry to analyze the scour formations and measure the flux of sand over time. To date, preliminary experiments have been conducted to determine the flow conditions for the split flow experiment.
Barnard Mondal received his BSCE from Purdue University in 2014. He is currently pursuing a MSCE with an emphasis in Hydraulics & Hydrology. Barnard's professional interests are in the fields of levee and dam risk assessment, and the design of urban flood protection systems.