A5054506001- Computational Fluid Dynamics and Aerodynamics
- Aerodynamics and Fluid Dynamics Research
- Aerodynamics and Acoustics in Jet Flows
- Fluid Dynamics and Vibration Analysis
- Aerospace and Aviation Technology
- Acoustic Wave Phenomena Research
- Advanced Aircraft Design and Technologies
- Wind and Air Flow Studies
- Vehicle Dynamics and Control Systems
- Fluid Dynamics and Turbulent Flows
- Plasma and Flow Control in Aerodynamics
- Real-time simulation and control systems
- Rocket and propulsion systems research
- Mechanical Engineering and Vibrations Research
- Biomimetic flight and propulsion mechanisms
- Wind Energy Research and Development
- Aerospace Engineering and Energy Systems
- Scientific Computing and Data Management
- Engineering Applied Research
- Turbomachinery Performance and Optimization
- Cavitation Phenomena in Pumps
- Robotic Path Planning Algorithms
- Model Reduction and Neural Networks
- Vibration and Dynamic Analysis
- Aeroelasticity and Vibration Control
Politecnico di Milano
2021-2024
The present study investigates the aerodynamic interactions in a tandem propellers configuration typical of tilt-wing eVTOL aircraft during transition manoeuvre. Particular focus is on how relative position and propeller's tilting angle influence performance. A systematic series wind tunnel tests, including thrust torque measurements with Particle Image Velocimetry (PIV) surveys, were performed two co-rotating models fixed axial distance while lateral separation changed. comprehensive...
Abstract This paper presents the activities performed in GARTEUR Action Group HC/AG-26 to study acoustic and aerodynamic characteristics of small rotor configurations, including influence rotor-rotor interactions. will focus on comparisons between numerical wind tunnel results a provided by DLR. The models included Rotor/Rotor/Pylon isolated, tandem coaxial configuration. experiments for acoustics were DLR’s Acoustic Wind Tunnel Braunschweig (AWB) PIV test CIRA within joint CIRA/DLR program....
<title>Abstract</title> This paper presents the activities performed in GARTEUR Action Group HC/AG-26 to study acoustic and aerodynamic characteristics of small rotor configurations, including influence rotor-rotor interactions. will focus on comparisons between numerical wind tunnel results a provided by DLR. The models included Rotor/Rotor/Pylon isolated, tandem coaxial configuration. experiments for acoustics were DLR’s Acoustic Wind Tunnel Braunschweig (AWB) PIV test CIRA within joint...
A mid-fidelity aerodynamic solver based on the vortex particle method for wake modeling, DUST, is coupled through partitioned multi-physics coupling library preCICE to a multibody dynamics code, MBDyn, improve accuracy of aeroelastic numerical analysis performed rotary-wing vehicles. In this paper, tool firstly validated by solving simple fixed-wing and problems from open literature. The transient roll maneuver complete tiltrotor aircraft then simulated, show capability analyze...
The present activity was aimed to validate the capability of a vortex particle-based mid-fidelity aerodynamics code for study aerodynamic interaction between wingtip-mounted propeller and wing with 25% chord flap. wing-propeller model considered in this work widely investigated literature, both by experiments high-fidelity CFD simulations represented benchmark case kind study, reproducing typical feature tiltrotors electrical distributed propulsion aircraft configurations. In particular,...
The study of the complex aerodynamics that characterise tiltrotors represents a challenge for computational fluid dynamics tools. URANS numerical solvers are typically used to explore aerodynamic features different flight conditions these aircraft, but their cost limits applications few vehicle configurations. present work explores capabilities new mid-fidelity code is based on vortex particle method, DUST, investigate performance and flow physics tiltrotors. With this aim, simulations were...
The present study is aimed at the experimental investigation of effects wing-propeller aerodynamic interaction in a boom-mounted configuration typically used eVTOL aircraft. was focused on repercussions wing and propeller performance coming from variation angle attack, advance ratio blades sense rotation. Moreover, particular attention devoted to evaluation effect propeller's longitudinal offset. Results comprehensive wind tunnel campaign performed propeller-mounted scaled model confirmed...
This work presents a comprehensive numerical environment, obtained by the coupling of mid-fidelity aerodynamic solver based on vortex particle method with multibody dynamics tool, for aeroelastic simulations suitable analysis and design next-generation rotary-wing aircraft. Indeed, presence multiple propellers rotors, together interactional aerodynamics, have strong impact dynamic loads performance indexes rotorcraft. A approach provides an ideal trade-off between accuracy solution speed...
The present study aimed to investigate the capability of mid-fidelity aerodynamic solvers in performing a preliminary evaluation static and dynamic stability derivatives aircraft configurations their design phase. In this work, solver DUST, which is based on novel vortex particle method (VPM), was used perform simulations motion conditions Stability And Control CONfiguration (SACCON): an unmanned combat aerial vehicle geometry developed by NATO’s Research Technology Organisation (RTO), as...
This work is aimed at investigating the capabilities and limits of mid-fidelity numerical solver DUST for evaluation wind turbines aerodynamic performance. In particular, this study was conducted by analysing benchmarks NREL- 5MW Phase VI turbines, widely investigated in literature from experimental activities. The started simulating simpler configuration turbine to progressively integrate complexities such as shaft tilt, cone effects yawed inflow conditions, offering a detailed portrayal...
View Video Presentation: https://doi.org/10.2514/6.2023-3221.vid The present paper deals with an innovative multi-fidelity framework for characterizing the aerodynamics and aeroacoustics of multirotor systems application to advanced eVTOL aircraft. In this framework, goal activity is a investigation two propellers in tandem rotor disks overlap, reproducing typical feature architectures airplane mode flight conditions. A Ffowcs Williams–Hawkings equation solver used compute aeroacoustic...
Abstract This work presents a numerical validation and capability demonstration of the solver MBDyn when applied to complex tiltrotor model. The Bell XV-15 equipped with Advanced Technology Blades (ATB) is chosen since considerable amount data publicly available. multibody modeling each sub-component, i.e. rotor, blades, yoke, drive system, airframe illustrated validated considering experimental results. first step towards further, more analyses, such as whirl-flutter stability assessment,...
The present paper is aimed to investigate the capability of mid-fidelity aerodynamic solvers perform a preliminary evaluation static and dynamic stability derivatives on aircraft configurations in their design phase. In this work, solver DUST based vortex particle method (VPM) used simulations over SACCON (Stability And Control CONfiguration), an unmanned combat aerial vehicle geometry developed by NATO's RTO (Research Technology Group). Two different methods are exploited order extract...
The paper presents a comprehensive numerical environment, obtained by coupling the mid-fidelity aerodynamic solver DUST, based on vortex particle method, with multibody dynamics tool MBDyn, for aeroelastic simulations suitable analysis and design of next-generation rotary-wing aircraft. coupled is exploited to determine trim tiltrotor, representative Bell XV-15 Advanced Technology Blades. loads are computed generic equilibrium conditions in airplane mode flight, using two levels fidelity...
This work is aimed at investigating the capabilities and limits of mid-fidelity numerical solver DUST for evaluation wind turbines aerodynamic performance. In particular, this study was conducted by analysing benchmarks NREL- 5MW Phase VI turbines, widely investigated in literature from experimental activities. The started simulating simpler configuration turbine to progressively integrate complexities such as shaft tilt, cone effects yawed inflow conditions, offering a detailed portrayal...
This work is aimed at investigating the capabilities and limits of mid-fidelity numerical solver DUST for evaluation wind turbines aerodynamic performance. In particular, this study was conducted by analysing benchmarks NREL-5 MW Phase VI turbines, widely investigated in literature via experimental activities. The started simulating a simpler configuration turbine to progressively integrate complexities such as shaft tilt, cone effects yawed inflow conditions, offering detailed portrayal...
The present paper describes an experimental campaign conducted at Politecnico di Milano within the framework of GARTEUR Action Group HC/AG-26. deals with investigation aeroacoustic footprint two propellers models in hovering condition for eVTOL (electrical Vertical Take-Off and Landing) urban air mobility applications. Acoustic measurements were performed by a set 12 microphones positioned on circular array surrounding setup anechoic test chamber, while force using load cells integrated into...
Abstract The present work aims to extend the capabilities of DUST, a mid-fidelity aerodynamic solver developed at Politecnico di Milano, for simulation rotorcraft applications. With this aim, numerical element was implemented in obtained by coupling between potential unsteady vortex lattice method and viscous data aerofoil sections available from two-dimensional high-fidelity computational fluid dynamics (CFD) simulations or experimental wind-tunnel tests. paper describes mathematical...