Optimization design of stirrer in bioreactor

The forms of agitator blades were outlined.The flow field in the fermentation tank was simulated by using computational fluid dynamics software.There was a fermenter,diameter D=3 800 mm,liquid height H=8 600 mm,Speed n=110 r/min.A315 turbine agitator was used as up impeller Rushton turbine agitator was used as down impeller.The simulated data shows that the six-leaves turbine stirrer effect is more excellent than Rushton turbine agitator,and much more conducive to the exchange of substances.