Call For Paper Volume:6 Issue:11 Nov'2019 |

CFD Analysis Of Non Prismatic Compound Channel

Publication Date : 02/08/2018

DOI : 10.21884/IJMTER.2018.5187.0BYXJ

Author(s) :

Shailesh Jaiswal , Dr.Bharat Jhamnani.

Volume/Issue :
Volume 5
Issue 7
(08 - 2018)

Abstract :

Experimental results are validated with CFD results concerning the velocity profile and boundary shear stress in a non prismatic compound channel comprising of one channel which is trapezoidal in shape and two symmetrical flood plains. The flood plains were made rough so that the effect of differential roughness between the main channel and the flood plains on the lateral momentum transfer process can be analysed. The flow process in the open channel becomes more complex at over bank stages due to the various hydraulic condition prevailing in the main channel and the adjacent flood plain. As the shallow flood plains provide more friction to flow than the deep main channel, the velocity seems to be higher in deeper main channel than the shallow flood plain. This deviation of velocity between deep main channel section and the adjacent shallow flood plains increase the lateral momentum transfer, which further makes the flow process complicated. The numerical model using ANSYS fluent as a result of developing simulation model for velocity and flow depth are compared with laboratory data for flow in a compound channel that comprises of a main channel and symmetric flood plains set at a fixed bed slope. Considerable agreement between the numerical results and experimental data is shown for steady uniform flow which is located at a section at a distance of 8m from the starting section.

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CFD Analysis Of Non Prismatic Compound Channel

July 26, 2018