Análise numérica e experimental da vazão mássica de ração avícola em silos verticais com inserts.

Abstract

One of the most necessary problems in the design of vertical silos is an accurate prediction of the load distribution in its body, with special attention to the pressure exerted on the walls due to the buoyancy of the stored product. The interaction of stored product and silo structure is extremely important to verify the loads acting on the body and hopper of the silo, as well as the product flow. The main objective of this research is a numerical and experimental analysis of the mass flow and the unloading speed of the stored product. From a numerical point of view, ANSYS 15.0 software was used, based on the Finite Volume Method (FVM). The influence of the inserts in the solution of flow problems was observed, with insert 2 in the second height analyzed. It promoted the best results for an improvement in the flow pattern of the stored product. Treating the numerical model all simulations dissipated mean error values lower than 15%, thus concluding that the proposed model was consistent with the experimental model.