What Numerical Parameters Can Be Considered When Optimising Industrial Stainless Steel Fans

What Numerical Parameters Can Be Considered When Optimising Industrial Stainless Steel Fans

Currently, numerical calculations of three-dimensional unsteady flow for industrial stainless steel fans have been successfully carried out, enabling an understanding of the aerodynamic performance of different blades. By applying the response surface method to perform a second-order regression analysis of the numerical results, the optimal values for two parameters and fan efficiency can be obtained. By analysing the relationship between noise levels and conducting optimisation analyses, experimental results indicate that these two parameters significantly influence the efficiency and noise levels of forward-curved blades, thereby reducing airborne noise. By combining reliable computational fluid dynamics techniques with the response surface method to maintain aerodynamic performance, improvements to industrial stainless steel fans and experimental planning can be achieved. The current research findings provide reference material for the overall design of energy-saving and noise-reducing industrial stainless steel fans. By analysing the current status and progress of internal flow fields in industrial stainless steel fans, and comparing the advantages and disadvantages of various methods, we summarise and optimise all aspects of the empirical data, thereby providing a research foundation for the internal flow fields of centrifugal fans. Currently, with further research into structure and analysis, as well as the development of related studies, three-dimensional numerical simulations of the flow field within the vortex of industrial stainless steel fans have been conducted using software and flow characteristics, yielding data on volumetric losses. Based on the simulation results, an arc-shaped baffle ring was designed. Numerical simulations of the industrial stainless steel fan downstream of the vortex indicate that, following the installation of the baffle ring, the intensity of the vortex is reduced, the flow field is improved, and volumetric losses are significantly reduced. This software has been utilised to simulate industrial stainless steel fans under various operating conditions. To address the internal flow field of the fan, the influence of typical geometric parameters on flow and airborne noise was investigated. By combining acoustic modelling with large-eddy simulation, the noise generated by the fan airflow was calculated. Experimental results indicate that the computational results under variable conditions are consistent with experimental values. The current research findings can provide design references for multi-blade industrial stainless steel fans.