Experimental and Numerical Investigation of a Highly Meandering Channel

Jena, Sumit Kumar (2015) Experimental and Numerical Investigation of a Highly Meandering Channel. MTech thesis.



Research on various aspects of velocity distribution, boundary shear stress etc. has been carried out on curved and meandering channels. But no systematic effort has been made to investigate the experimental and numerical simulation on a highly sinuous meandering channel along its meandering path. In this research work, detailed investigation of velocity distribution and boundary shear distribution along the depth and width of a highly sinuous channel (Sr 4.11) has been carried out. The analysis is performed at thirteen different sections along a meander path, i.e. from one bend apex to another. The study includes longitudinal velocity distribution, depth-averaged velocity and boundary shear stress analysis at each section. The results iterate that the higher longitudinal velocity always remains towards the inner bank and as the channel changes its curvature, so does the movement of higher velocity which moves from one bank towards the other. The experimental results are then validated through numerical modelling by using Ansys-Fluent which takes large eddy simulation model to solve the turbulence equations. The numerical results are found to be well complimenting with the experimental results. The experimental results are also analysed with another researcher’s work having the same geometrical parameters, having a different aspect ratio.

Item Type:Thesis (MTech)
Uncontrolled Keywords:Bend apex, meander path, cross-over, longitudinal velocity distributions, boundary shear stress, numerical modeling, turbulence, Ansys-Fluent
Subjects:Engineering and Technology > Civil Engineering > Water Resources Engineering
Divisions: Engineering and Technology > Department of Civil Engineering
ID Code:7599
Deposited By:Mr. Sanat Kumar Behera
Deposited On:18 Sep 2016 17:32
Last Modified:18 Sep 2016 17:32
Supervisor(s):Khatua, K K

Repository Staff Only: item control page