Rahimi - Department of Chemical Engineering, Sistan and Baluchestan University
Zivdar - Department of Chemical Engineering, Sistan and Baluchestan University
Salehi - Department of Chemical Engineering, Sistan and Baluchestan University
Shahraki - Department of Chemical Engineering, Sistan and Baluchestan University

Sensitivity analysis is an increasingly active area of research within CFD. The main objective of this research has been to investigation a mathematical model for use in simulations of Baffled stirred reactor hydrodynamics. To evaluate this model, simulations are done for a single-phase impeller stirred vessel in 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 & Kim for impeller stirred systems is far superior over the standard model used for bubble stirred systems. Also a comparison of sliding mesh, snapshot and empirical sources models for 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.

Computational Fluid dynamics, Baffled stirred reactor, Sliding mesh Hydrodynamics, Mathematical Effective Parameters