Title :
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CFD Modeling for Concentration Distribution and Pressure drop for two Phase Flow through Pipe Bend
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Author :
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Arvind Gupta
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Journal name :
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IJMRS's International Journal of Engineering Sciences, ISSN 2277-9698
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Volume :
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Volume 02, Issue 04, Dec. 2013
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Keywords :
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Slurry flow, CFD, Eulerian model, pressure drop, Pipe bend
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Abstract :
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Pipe bends generally used to provide the flexibility for pipeline routing. For solid-liquid flows, the secondary flows generated in bends also affect the solid distribution in the downstream side in addition to the increase in pressure loss. In the present study, experimental data are collected from a pilot plant test loop and experiments are performed at volumetric concentrations of silica sand from 0% to 8.82% and for each concentration at the flow velocity 1.78m/s. Concentration samples are collected from mid-horizontal and mid-vertical planes at different cross-sections in the downstream side of pipe bend. It is observed experimentally that the pressure drop along the pipe bend increases with particle concentration. The experimental data collected in the present study have been compared with three-dimensional computational fluid dynamics (CFD) modeling, using Eulerian two-phase model available in commercial CFD software FLUENT 6.2. The standard k–epsilon model is used to treat turbulence phenomena in both the phases. It is observed that CFD modeling gives fairly accurate results for almost all the pressure drop and concentration profile data considered in the present study.
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