[HTML][HTML] Wind-tunnel experimental investigation on rotor-rotor aerodynamic interaction in compound helicopter configuration

A Colli, A Zanotti, G Gibertini - Aerospace Science and Technology, 2024 - Elsevier
In recent years, the compound helicopter configuration, featuring the addition of lateral
propellers to a helicopter main rotor, has gained renewed interest for its ability to achieve …

On the use of modern engineering codes for designing a small wind turbine: an annotated case study

F Papi, A Nocentini, G Ferrara, A Bianchini - Energies, 2021 - mdpi.com
While most wind energy comes from large utility-scale machines, small wind turbines
(SWTs) can still play a role in off-grid installations or in the context of distributed production …

Hydrodynamic optimization of high-performance blade sections for stall regulated hydrokinetic turbines using Differential Evolution Algorithm

A Muratoglu, R Tekin, ÖF Ertuğrul - Ocean Engineering, 2021 - Elsevier
Hydrokinetic turbines are electromechanical devices, which convert the kinetic energy of
freely flowing water into electricity without accumulating water. Turbine blades are …

Free Surface Double Actuator Disc Theory and Double Multiple Streamtube Model for In-Stream Darrieus Hydrokinetic Turbines

L Cacciali, L Battisti, S Dell'Anna - Ocean Engineering, 2022 - Elsevier
According to the literature, the last improvement to the Actuator Disc Theory for hydrokinetic
turbines in channel flows included blockage ratio and Froude number as independent …

Heat transfer correlations for smooth and rough airfoils

S Samadani, F Morency - Fluids, 2023 - mdpi.com
Low-fidelity methods such as the Blade Element Momentum Theory frequently provide rotor
aerodynamic performances. However, these methods must be coupled to databases or …

Formulation, validation, and application of a novel 3D BEM tool for vertical axis wind turbines of general shape and size

AG Sanvito, V Dossena, G Persico - Applied Sciences, 2021 - mdpi.com
Low order models based on the Blade Element Momentum (BEM) theory exhibit modeling
issues in the performance prediction of Vertical Axis Wind Turbines (VAWT) compared to …

Experimental Assessment of the Poststall Performance of Two Highly Cambered Airfoils

B Emmerson, D Verstraete - Journal of Aircraft, 2024 - arc.aiaa.org
Poststall aerodynamic data are required to design and validate propellers, rotors, and wind
turbines. However, these data are scarce for (highly) cambered airfoils. This study provides …

Impact of Post-Stall Extrapolation and Rotational-Augmentation Models on the Performance of Stall-Controlled Wind Turbines

F Papi, A Nocentini, PF Melani… - … Expo: Power for …, 2022 - asmedigitalcollection.asme.org
While most wind energy comes today from utility-scale machines, small wind turbines SWTs
can still play a role in off-grid installations or in the context of distributed production and …

A non-linear unsteady vortex-lattice method for rotorcraft applications

A Cocco, A Savino, A Colli, P Masarati… - The Aeronautical …, 2024 - cambridge.org
The present work aims to extend the capabilities of DUST, a mid-fidelity aerodynamic solver
developed at Politecnico di Milano, for the aerodynamic simulation of rotorcraft applications …

[PDF][PDF] Numerical investigation of wing-propeller aerodynamic interaction through a vortex particle-based aerodynamic solver

A Savino, A Cocco, A Zanotti… - … Rotorcraft Forum (ERF …, 2022 - re.public.polimi.it
The present paper describes the results of a numerical investigation of a wing with an
integrated propeller using the midfidelity aerodynamic solver DUST. The wing/propeller …