Abstract
Computational fluid dynamics (CFD) simulations of the flow inside the upper portion of the rotor of an annular centrifugal contactor were performed to explore the effect of weir cap design on flow patterns in this region and compare versus open upper weirdesigns. Flow patterns and pressure drop were compared. It was found that the cap design can be easily modified to smooth the flow profile and enable steady exit flow, but that venting of the cap is required to eliminate negative pressure buildup above the weir.
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