Part of #Effective Parameters in Computational Fluid Dynamics Simulation of Baffled Stirred column Reactor Hydrodynamics with Sliding Mesh# :
Publishing year : 2005
Conference : The 10th National Congress of Chemical Engineering of Iran
Number of pages : 10
Abstract: Sensitivity analysis is an increasingly active area of research within CFD. The main objective of this research has been to investigate a mathematical model for use in simulations of Baffled stirred reactor hydrodynamics. To evaluate this model, the simulations are done for a single-phase stirring vessel in a laboratory scale. These results are then compared with experimental data from literature. For the single-phase system, two different turbulence models were tested. It is clear that the modified model of Chen & amp; Kim for impeller stirred systems is far superior to the standard model used for bubble-stirred systems. Also, a comparison of the sliding mesh, snapshot, and empirical source models for the impellers are done for the same system. It is shown that the sliding mesh model and the snapshot model give very similar results, with maybe a small preference for the sliding mesh model. The empirical source model is believed to give good results on time average.