A method based on Computational Fluids Dynamics (CFD) was used to analyse the flow
behaviour in the Biodiesel reactor with 6-blade at 45° pitch blade turbines. The study, which was based
on the turbulent flow, had been associated with three sizes of the blades installed in the reactor by using
the standard k-ε turbulence model. The study also included the pitch blade turbines that were installed
at three clearances from the bottom in the reactor by using the standard k-ε turbulence model. The
results showed that the flow behaviours differed for the three various locations, which were installed at
C=T/4, C=T/2, and C=3T/4 for D=T/3. The results also showed that the flow behaviour had been
different for the three impeller diameters installed at C=T/4. Besides, good quantitative agreement for
velocity distribution was obtained. Good velocity distribution in the reactor was produced by D=T/3.
Moreover, a comparison between the three impeller diameters in terms of velocity distribution
suggested that the discharge flow from the smaller impeller had stronger axial flow during the mixing
process.