Optimization of fluid flow inside blowroom transport duct using CFD

摘要

The fiber characteristics go through a transformation in blowroom transport ducts, namely buckling of fibers and compactness of fiber tufts, as a result of flow characteristics in the duct. To understand the effect of flow, a detailed analysis of the air flow characteristics inside blowroom transport ducts using computational fluid dynamics has been carried out. Based on the analysis, the critical flow regimes within the transportation duct responsible for transformation of tuft openness have been established. Modification has been suggested to improve the flow characteristics in the duct. Flow analysis has been carried out by inserting plates (flow deflectors) by varying the inclination and proportion of area blockage created with a view to improve the flow. It is seen that 10% area blockage and inclination angle of 45° improve the flow significantly and experiments carried out with fiber showed significant reduction in compactness of fibers.