An effect of the impeller eccentricity on the process characteristics in an agitated vessel—experimental and numerical modeling

Resumo

An effect of the impeller eccentricity on the process characteristics in an agitated vessel was analyzed on the basis of our own experimental and numerical results obtained within the turbulent range of the Newtonian liquid flow. Mixing time, power consumption, local and mean values of the heat transfer coefficients and distributions of the transport coefficients (shear rate and friction coefficient) at the vicinity of the vessel wall were studied experimentally within the wide range of the operating and geometrical parameters of the agitated vessel equipped with eccentrically located high-speed impeller. Numerical simulations of hydrodynamics in an agitated vessel with eccentrically located axial flow impeller (up-pumping propeller or downpumping HE-3 impeller) were carried out using CFD method.