VW Applied Sciences, Volume: 1, Issue: 1, 15-25
Received: Sept. 08, 2019
Accepted: Sept. 15, 2019
Published online: Sept. 16, 2019
Rakesh Kumar Chaudhary1
Mohammad Aamir2*
Zulfequar Ahmad2
Surendra Kumar Mishra1
1Department of Water Resources Development and Management, Indian Institute of Technology Roorkee, India
2Department of Civil Engineering, Indian Institute of Technology Roorkee, India
*Corresponding author email: mohdaamir.amu@gmail.com
Abstract: The performance of corrugated apron under free flow subcritical condition over the apron was evaluated experimentally. Compared to a smooth rigid apron, the scour depth increased with the application of a corrugated apron under the free flow of jets. Velocity and turbulence characteristics, as well as Reynolds shear stress over smooth and corrugated aprons, were also studied. Rate of increase of turbulence intensity in scour hole due to the smooth apron was found to be higher than scour hole due to the corrugated apron. Scour downstream of corrugated apron clearly shows three distinct regions: jet diffusion, transition and accelerating region as well as the recirculating region at near bed of scour hole.
