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Three-dimensional simulation of hydrodynamics in a rotating disc contactor using computational fluid dynamics
Ghaniyari Benis, S ; Sharif University of Technology | 2009
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- Type of Document: Article
- DOI: 10.1002/ceat.200800391
- Publisher: 2009
- Abstract:
- The 3D simulation of the hydrodynamic behavior of a rotating disc contactor (RDC) by means of computational fluid dynamics (CFD) was investigated for the n-butanol-succinic acid-water (BSW) system. For the two-phase liquid-liquid flow, the velocity distribution of the continuous phase and drop size distributions were determined using the k-ω turbulence model in conjunction with the Eulerian-Eulerian approach and MUSIG model. In this system in which the holdup of the dispersed phase is low, the continuous phase velocity was computed by simultaneously solving the Navier-Stokes equations beside the different models of turbulence. The motions of the dispersed phase was calculated while considering buoyancy, drag and inertia forces, and equations related to the continuous and dispersed phases were coupled to each other by considering the momentum transfer on the interface and the effect of drop motions in turbulence. In this simulation, by considering drops' breakage, their path, the velocity profile, and also the velocity contour plot of the dispersed phase were obtained. A comparison of the holdup experimental values with the results predicted by CFD showed that the k-ω model is the best descriptive model for the computation of holdup in a RDC. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA
- Keywords:
- Computational fluid dynamics ; Holdup ; Hydrodynamics ; Rotating disc contactor ; Simulation ; Computational fluid dynamics ; Drops ; Hydrodynamics ; Liquids ; Navier Stokes equations ; Phase interfaces ; Rotation ; Three dimensional ; Three dimensional computer graphics ; Turbulence ; Turbulence models ; Velocity ; 3-D simulations ; Continuous phase ; Descriptive models ; Dispersed phase ; Dispersed phasis ; Drop size distributions ; Eulerian-Eulerian approaches ; Experimental values ; Holdup ; Hydrodynamic behaviors ; Inertia forces ; N butanols ; Rotating disc contactor ; Simulation ; Succinic acids ; Three-dimensional simulations ; Two-phase liquids ; Velocity contours ; Velocity profiles ; Fluid dynamics
- Source: Chemical Engineering and Technology ; Volume 32, Issue 1 , 2009 , Pages 93-102 ; 09307516 (ISSN)
- URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/ceat.200800391