Advancements in Aerodynamics and Aeroacoustics: Addressing Installation Effects

Dear Colleagues,

Emerging trends in civil aviation are driving the development of innovative air transport concepts, with a particular focus on enhancing efficiency and sustainability. These concepts encompass a range of advancements, including novel aircraft designs for long-range travel and propeller-driven electric planes tailored to regional commuting. However, achieving social acceptance is key to their success, which may be severely restricted in densely populated areas due to noise emissions. The evolution of unconventional aviation configurations, such as the blended wing body, aircraft exploiting boundary layer ingestion, and urban air mobility aircraft, heavily relies on the intricate interplay between multi-propeller systems and an aircraft's structure.

A common element of these upcoming aircraft concepts is the formidable complexity of the highly unsteady aerodynamic and acoustic interactions between the airframe surfaces and the adjacent propulsion systems and aircraft structures, which affects the aerodynamic performance and noise emissions. Predicting aerodynamic performance and noise emissions remains challenging, especially in the installed configuration, where the interactions between more propulsive systems or propulsive systems and airframe surfaces generate strong non-linear effects that are very hard to predict using the conventional approaches presented in the literature.

In light of these challenges and goals, this Special Issue of Applied Sciences requests publications of exceptional quality within the fields of aerodynamics and aeroacoustics, with a specific focus on futuristic aircraft technologies designed to prognosticate and alleviate installation-induced effects. We earnestly encourage submissions from the academic and industrial domains. This scope includes recent breakthroughs in experimentation, theoretical frameworks, computational methodologies, and comprehensive reviews that showcase the current knowledge and its varied perspectives.

Kind Regards

Dr. Stefano Meloni
Dr. Giorgio Palma
Dr. Anderson Proença
Guest Editors

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• jets
• propellers
• airframe noise
• interaction noise
• haystacking
• blade to blade interaction
• jet–plate interaction
• jet–wing interaction