Advances in aerodynamic and propulsive efficiency of future aircraft can be achieved by
strategic installation of propellers near the airframe. This paper presents a robust and …

An experimental analysis was performed of the unsteady aerodynamic loading caused by
the im**ement of a propeller slipstream on a downstream lifting surface. When installed …

Sound absorbing porous materials are used to line a wind tunnel wall, in order to reduce
reflections. However, the lining can have a detrimental effect on the acoustic measurements …

The im**ement of a propeller slipstream on a downstream surface causes unsteady
loading, which may lead to vibrations responsible for structure-borne noise. A low-speed …

Sustainability has encouraged studies focusing on lowering the aeroacoustic impact of new
aerodynamically optimized mechanical systems for several applications in wind-energy …

This study investigates the acoustic characteristics of a distributed propeller-wing system in
a tractor configuration, focusing on the potential for noise reduction using the …

View Video Presentation: https://doi. org/10.2514/6.2023-4162. vid Aeroacoustic tests in
closed wind tunnels are affected by reflections in the tunnel circuit and background noise …

View Video Presentation: https://doi. org/10.2514/6.2021-2511. vid Wingtip-mounted
propellers are a promising solution for advanced propulsion integration on future (hybrid-) …

Swirl-recovery vanes (SRVs) enhance propulsive efficiency by converting the rotational
kinetic energy in a propeller slipstream into additional thrust. This paper discusses the …

Because of the inherently high efficiency of turboprop propulsion systems compared to
turbofan engines, propellers are an attractive means of propulsion for the next-generation …