A Review of New Experimental Technologies for the Development of Advanced Fans with High Bypass Ratio

Abstract

The paper reviews new experimental technologies for the development of advanced fans with high bypass ratios. Most of those developments are carried out in a highly specialized acoustic test facility available at the Central Institute of Aviation Motors (CIAM) in Moscow. The C-3A facility is equipped with an anechoic chamber specifically designed for acoustic, aerodynamic, and mechanical investigations of counter rotating fan models.

Keywords

• advanced counter rotating fan
• experimental technologies
• high bypass ratio
• casing treatment
• fan acoustics
• flow distortion