Numerical Study and Geometric Investigation of the Influence of Rectangular Baffles over the Mixture of Turbulent Flows into Stirred Tanks

The present work aims to define strategies for numerical simulation of the mixture turbulent flows in a stirred tank with low computational effort, and investigate influence geometry four rectangular baffles on problem performance. Two models based momentum source sliding mesh are validated by comparison experimental results from literature. For both models, time-averaged conservation equations mass, transport solved using finite volume method (FVM) (FLUENT® v.14.5). standard k–ε model is used closure turbulence. Concerning geometrical investigation, constructal design employed search space, degrees freedom performance indicators problem. More precisely, seven configurations different width/length (L/B) ratios studied compared an unbaffled case. leads valid significantly reduces effort model. design, indicate that case without creates highest magnitude turbulence kinetic energy, but poorly distributes it along domain. best configuration, (L/B)o = 1.0, nearly two times superior than baffles.