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Numerical Simulation of Multiphase Flow in Chemical Reactors pp. 385-474 $100.00
Authors:  (Chao Yang, Yumei Yong, Zai-Sha Mao, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China)
Abstract:
More and more attentions have been paid to better understanding of the mechanisms of multiphase flow and interphase mass and heat transfer on the mesoscale and macroscale systems. The development of computational fluid dynamics (CFD) and related sciences make it possible to quantitatively describe complicated multiphase flow and solve the problems of scale-up effect and macro-control in the chemical industry processes. The current state of the art in CFD is the Reynolds-averaged Navier-Stokes method (RANS), but the marked disadvantage with this method is the modeling limited generality and unsatisfactory accuracy. Direction numerical simulation (DNS) methods completely simulate turbulent flow with high precision by a large number of grids, but up to now it is still impossible to apply it into industrial processes. The large eddy simulation (LES) method instead can be used for very general applications (geometry as well as flow fields) and the accuracy is dramatically better compared to RANS turbulence modeling. The undesirable drawback of LES is the higher computational time required for the solution. 


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Numerical Simulation of Multiphase Flow in Chemical Reactors pp. 385-474