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In this paper an attempt has been made to develop the sediment diffusion equation for a circular cylindrical vortex chamber in cylindrical i.e. r-θ-z co-ordinate system. The developed equation is thus solved using Finite Difference Technique (Crank-Nikolson Method) to yield sediment concentration at various points in vertical and horizontal planes in side the chamber. The sediment concentration profiles along vertical, radial and tangential directions are plotted to study the effect of flow and chamber parameters on concentration distribution. The estimated values of sediment concentration with theoretical consideration are compared with measured values at same nodal points by collecting the sediment samples. It is found that the calculated and measured data for concentration are in close agreement within the tolerance limit of ± 25 %.
In this paper an attempt has been made to develop the sediment diffusion equation for a circular cylindrical vortex chamber in cylindrical i.e. r-θ-z co-ordinate system. The developed equation is thus solved using Finite Difference Technique (Crank-Nikolson Method) to yield sediment concentration at various points in vertical and horizontal planes in side the chamber. The sediment concentration profiles along vertical, radial and tangential directions are plotted to study the effect of flow and chamber parameters on concentration distribution. The estimated values of sediment concentration with theoretical consideration are compared with measured values at same nodal points by collecting the sediment samples. It is found that the calculated and measured data for concentration are in close agreement within the tolerance limit of ± 25 %.
SEDIMENT CONCENTRATION DISTRIBUTION IN VORTEX CHAMBERS
Athar, M. (author)
ISH Journal of Hydraulic Engineering ; 13 ; 15-38
2007-01-01
24 pages
Article (Journal)
Electronic Resource
Unknown
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