Numerical analysis of flow field and structural optimization of a high-salinity wastewater stirring device

Abstract

To achieve rapid and uniform mixing requirements for fluid agitation tanks in industrial processes, this study takes a fluid agitation tank used in wastewater treatment as the research object and conducts numerical simulation research on its internal flow field using the flow field analysis software Fluent. A three-dimensional geometric model of the agitation tank is established using SOLIDWORKS software. Meshing is performed in Fluent with local refinement applied to the blade region, and simulation analysis is carried out using Fluent software. The research results indicate that the density distribution of the mixture within the agitation tank gradually becomes uniform over time, reaching a dynamic equilibrium. The Fluent simulation method effectively overcomes the shortcomings of traditional theoretical calculations and physical experiments, offering advantages such as shorter cycles, lower costs, and higher safety, thus providing a reliable technical basis for the structural design and process optimization of agitation tanks.