Computational fluid dynamics (CFD) simulation and validation of the gas flow field in a rotating packed bed

SUN RunLin;XIANG Yang;CHU GuangWen;ZOU HaiKui;SHAO Lei;CHEN JianFeng

Journal of Beijing University of Chemical Technology ›› 2012, Vol. 39 ›› Issue (4) : 6-11.

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Journal of Beijing University of Chemical Technology ›› 2012, Vol. 39 ›› Issue (4) : 6-11.
化学与化学工程

Computational fluid dynamics (CFD) simulation and validation of the gas flow field in a rotating packed bed

  • SUN RunLin;XIANG Yang;CHU GuangWen;ZOU HaiKui;SHAO Lei;CHEN JianFeng
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Abstract

In order to explore the distribution of the gas flow field in a rotating packed bed (RPB), a two-dimensional physical model of a RPB has been established, using AutoCAD software and simplifying the packing—which is the most important part in a RPB. The standard k-εturbulence model was used to simulate the gas flow field and to calculate the pressure drop in a countercurrent RPB based on the Gambit-luent calculation platform. The radial distribution of the gas was also analyzed. According to the contours of total pressure, it was found that the main pressure drop in a RPB exists in the rotating packing zones. The simulation results indicated that the pressure drop rises when the gas flow rate and speed increase, and the maximal relative error was about 22.6% when compared with experimental data. For several RPBs whose designs had different inlets or inner components, the pressure drop decreased in the order tangential inlet > radial inlet with baffle (whose uniformity of the gas distribution was the worst) > radial inlet with pore baffle > radial inlet.

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SUN RunLin;XIANG Yang;CHU GuangWen;ZOU HaiKui;SHAO Lei;CHEN JianFeng. Computational fluid dynamics (CFD) simulation and validation of the gas flow field in a rotating packed bed[J]. Journal of Beijing University of Chemical Technology, 2012, 39(4): 6-11

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