The impact and optimization of installation distance on the aerodynamic performance of axial flow fans based on the response surface method
摘要
To study the impact of installation distance on the performance of an axial flow fan, a 3D simulation model of the axial flow fan was first created using SolidWorks software. Then, the effects of Installation Distance A, Installation Distance B, and Installation Distance C on the aerodynamic performance of the axial flow fan under different operating conditions were examined. Finally, the total pressure and efficiency of the axial flow fan were optimized using the Response Surface Method. The results showed that as the installation distance increased, turbulence and vortices in the airflow also increased, leading to higher friction and resistance losses, which ultimately reduced the fan’s total pressure and efficiency. The axial flow fan achieved optimal performance when Installation Distance A was 0 mm, Installation Distance B was 52.6 mm, and Installation Distance C was 1.3 mm. At this configuration, the total pressure and efficiency at an airflow rate of 70 m3/s were 3967.89 Pa and 86.03%, respectively. Compared to the original fan, the optimized fan’s total pressure increased by an average of 2.8%, efficiency improved by an average of 3.3%, and both the blade work capacity and guide vane diffusion capacity were enhanced, resulting in a more uniform internal flow.