Dr Alessandro Pontillo's Outputs (9)

Wind tunnel investigations of a pitch-free flexible high aspect ratio aircraft model (2024)
Presentation / Conference Contribution

This paper presents low Reynolds number experimental wind tunnel investigations of flexible high aspect ratio aircraft models with body pitch degree-of-freedom. The aim is to assess nonlinear dynamic interactions of highly flexible wings with aircraf... Read More about Wind tunnel investigations of a pitch-free flexible high aspect ratio aircraft model.

Experimental and numerical analysis of the bifurcation behaviour of a very flexible wing (2024)
Presentation / Conference Contribution

High aspect ratio wings promise greater aerodynamic efficiency with subsequent savings for airlines. However, these types of designs could be prone to unstable aeroelastic responses within the standard flight envelope, which may result from the reduc... Read More about Experimental and numerical analysis of the bifurcation behaviour of a very flexible wing.

Low fidelity modelling of the nonlinear aerodynamics of spoilers (2023)
Presentation / Conference Contribution

Spoilers are secondary control surfaces mainly used for roll control, load alleviation and as airbrakes. However, when considering very flexible wings, spoilers could also play a primary role in controlling the aircraft's attitude as an ideal alterna... Read More about Low fidelity modelling of the nonlinear aerodynamics of spoilers.

Numerical investigations of subscale flexible high aspect ratio aircraft on a dynamic wind tunnel rig (2023)
Presentation / Conference Contribution

High aspect ratio wings have been a major topic for research due to their capability to improve the aerodynamic efficiency of modern aircraft. Many numerical studies have shown their flexibility causing nonlinearity through geometric effects and thei... Read More about Numerical investigations of subscale flexible high aspect ratio aircraft on a dynamic wind tunnel rig.

Low-order aeroelastic modelling of a high aspect ratio wing aircraft under constrained motion (2021)
Presentation / Conference Contribution

The work presented in this paper describes the modelling of a low-order aeroelastic solver, built with the aim of analysing the dynamics of very flexible wing aircraft, with a focus on the coupling between the flight dynamics and the structural dynam... Read More about Low-order aeroelastic modelling of a high aspect ratio wing aircraft under constrained motion.

Design and assessment of subscale flexible high aspect ratio cantilever wings (2021)
Presentation / Conference Contribution

High aspect ratio wings have been the focus of several recent studies for efficiency improvements in modern aircraft. Many numerical studies can be found in literature with some experimental validations. The work presented here describes the design,... Read More about Design and assessment of subscale flexible high aspect ratio cantilever wings.

Experimental analysis of the dynamics of flared folding wingtips via a novel tethered flight test (2021)
Presentation / Conference Contribution

Recent developments in morphing wing technologies are routinely tested using Unmanned Aerial vehicles (UAVs) due to their relatively low cost and time to manufacture. However, atmospheric flight tests limit both the repeatability of the recorded data... Read More about Experimental analysis of the dynamics of flared folding wingtips via a novel tethered flight test.

High aspect ratio wing design using the minimum exergy destruction principle (2019)
Presentation / Conference Contribution

High Aspect Ratio Wings (HARW) may provide the efficiency improvements required for next generation aircraft to meet the environmental and economic challenges faced by the aviation industry. In this paper, the authors describe the development of a sh... Read More about High aspect ratio wing design using the minimum exergy destruction principle.

Aeroelastic scaling for flexible high aspect ratio wings (2019)
Presentation / Conference Contribution

This paper provides an overview of the work conducted as part of the Cranfield BEAm Reduction and Dynamic Scaling (BeaRDS) programme, which aims to develop a methodology for designing, manufacturing and testing of a dynamically scaled High Aspect Rat... Read More about Aeroelastic scaling for flexible high aspect ratio wings.