Studi Numerik Pengaruh Profil Sudu Terhadap Performa Axial Fan 445 MM

Axial fans are often used in industrial fields. The axial fan needs are higher than the centrifugal one, so there are more and more local companies produce the fan. However, many producers ignore their performance and are more concerned with large-scale production. Based on this case, 3D modelling simulations based on Computational Fluid Dynamics (CFD) of axial fans were carried out to analyse the effect of blade profile to the flow coefficient (Cp) and power coefficient (?) values. Simulations were carried out by using symmetrical and asymmetrical blade profiles. The final results show that the best flow coefficient (Cp) and power coefficient (?) on symmetrical blade profiles are ? = 0.09454436 on NACA 0008 and Cp = 0.011033747 on NACA 0012. In the asymmetric blade profile, the best value obtained is ? = 0.124312977 in NACA 6412 and Cp = 0.012551278 in NACA 6408. Existing fan that uses NACA 6409 produces ? = 0.14682861 and Cp = 0.007272471. Therefore, the most optimum axial fan is the existing fan with NACA 6409 blade profile.