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Aerodynamics Modeling

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "I: Energy Fundamentals and Conversion".

Deadline for manuscript submissions: closed (20 October 2021) | Viewed by 19873

Special Issue Editor


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Guest Editor
Aerospace Sciences Department, University of Beira Interior, Calçada Fonte do Lameiro, 6201-001 Covilhã, Portugal
Interests: propulsion; V/STOL; jet aerodynamics; biomimetics

Special Issue Information

Dear Colleagues, 

Aerodynamics is intimately associated with the invention of the airplane that was made possible by Sir George Cayley’s identification of the four relevant forces: lift, weight/gravity, thrust, and drag. Cayley’s separation of the concepts of lift, thrust, and control at the end of the 18th century is considered the dawn of fixed-wing flying machines. However, in the beginning of that century, Newton’s law of Mechanics was also a decisive step in the development of aerodynamics, followed by other, no less important work, such as that of Bernoulli, Euler, Reynolds, Prandtl, von Kármán, and others. 

The applications of modern aerodynamics have been evolving from the Wright Brothers’ low-speed fixed-wing airplane to many other flow environments and different properties of the flow: compressible, viscous, supersonic, turbulent, reactive, automobiles, bridges, wind turbines, environment and pollution, heating and ventilation, sports (soccer, golf, sailing, etc.), insects and bird’s flight, etc. 

The design for all applications, environments, and flow properties has a common requirement that consists of the knowledge of the flow field and forces developed. The ideal and cheapest approach would be the mathematical solution of all the equations governing the phenomena and representing the geometry details. Unfortunately, this can only be achieved for simplified geometries or flow conditions that frequently remain far away from practical applications. Nevertheless, important progresses have been obtained using those approximate methodologies and then experimentally testing the most promising solutions. Additionally, the diagnostic techniques and equipment have significantly improved both in terms of accuracy and acquisition/processing times, but the design based exclusively on experimental techniques still has a huge weight on the total development cost and time. In recent years, big improvements in aerodynamics modeling have been achieved with the availability of higher-capacity computers and new physical and numerical models that have substantially reduced the experimental testing cost and time. 

The aim of this Special Issue of Energies is to gather the most recent research in Aerodynamics Modeling that contributes to the sustainable development of science, technology, and engineering. Papers are solicited in the field of theoretical, experimental, and computational approaches to Aerodynamics Modeling. Potential topics include but are not limited to flight or ground vehicle aerodynamics, methods for aerodynamics modeling, and novel studies or technological applications related to Aerodynamics Modeling applications. 

This Special Issue welcomes original research articles on the state-of-the-art of new methodologies, theoretical, analytical, experimental, and computational tools applied to Aerodynamics. Potential topics are listed below, but work in related areas is also encouraged. 

Prof. Jorge M. M. Barata
Guest Editor

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Keywords

  • Aerodynamic design and aircraft flight dynamics: analysis, methodologies, optimization, and performance
  • Aerodynamic testing: ground, wind-tunnel, and flight testing
  • Aerodynamic–structural dynamics interaction
  • Aeropropulsive interaction
  • Airfoil/wing/configuration aerodynamics
  • Cavity flows
  • High angle of attack and high-lift aerodynamics
  • Low speed, transonic, supersonic, and hypersonic aerodynamics
  • Multi-phase flows
  • Propeller/rotorcraft/wind turbine aerodynamics
  • Unmanned, bio-inspired, solar-powered aerial vehicle design
  • Unsteady aerodynamics
  • Vortical/vortex flow aerodynamics
  • VSTOL/STOVL/STOL Applications
  • Topics in innovative aerodynamics modeling

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Published Papers (2 papers)

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Research

18 pages, 10348 KiB  
Article
The Influence of Front Wing Pressure Distribution on Wheel Wake Aerodynamics of a F1 Car
by Daniel Martins, João Correia and André Silva
Energies 2021, 14(15), 4421; https://doi.org/10.3390/en14154421 - 22 Jul 2021
Cited by 14 | Viewed by 6853
Abstract
The present study focuses on investigating the aerodynamic interaction between a three-element wing and wheel in ground effect, following the Formula One regulation change set for 2022, among which is the simplification of the front wing. This was accomplished by conducting a three-dimensional [...] Read more.
The present study focuses on investigating the aerodynamic interaction between a three-element wing and wheel in ground effect, following the Formula One regulation change set for 2022, among which is the simplification of the front wing. This was accomplished by conducting a three-dimensional computational fluid dynamics analysis, using a Detached-Eddy Simulation approach, on a simplified one-quarter model of a Formula One racing car. The main goal was to examine how changing the front wing pressure distribution, by changing the incidence of the second flap, affected the wheel wake. The flow investigation indicated that the wheel wake is influenced by the flap configuration, which is mainly due to the fact that different flap configurations produce different upwash flow fields, leading to a variation of the separation point on top of the tire. As the separation point moves rearwards, the downwash generated in the central region (for a vertical plane) of the wheel wake increases incrementally, leading to a resultant wake that is shorter and further apart. The force investigation showed that the proximity between the region of instability (i.e., vortex breakdown) and the wing’s trailing edge influences the behavior of the transient oscillations, regarding the forces acting on the wing: detecting higher drag force fluctuations, when compared to downforce fluctuations. Full article
(This article belongs to the Special Issue Aerodynamics Modeling)
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15 pages, 12145 KiB  
Article
Aerodynamic Effect of the Gurney Flap on the Front Wing of a F1 Car and Flow Interactions with Car Components
by Mattia Basso, Carlo Cravero and Davide Marsano
Energies 2021, 14(8), 2059; https://doi.org/10.3390/en14082059 - 8 Apr 2021
Cited by 20 | Viewed by 11638
Abstract
The design of a racing car needs several aerodynamic design steps in order to achieve high performance. Each component has an aerodynamic interaction with the others and high performance requires a good match between them. The front wing is undoubtedly one of the [...] Read more.
The design of a racing car needs several aerodynamic design steps in order to achieve high performance. Each component has an aerodynamic interaction with the others and high performance requires a good match between them. The front wing is undoubtedly one of the main components to determine car performance with a strong interaction with the downstream components. The Gurney Flap (GF) is a small appendix perpendicular to the pressure side of the front wing at the trailing edge that can dramatically improve the front wing performance. In the literature, the performance of a GF on a single profile is well documented, while in this paper the GF mounted on the front wing of a racing car has been investigated and the interactions through the 3D flow structures are discussed. The global drag and downforce performance on the main components of the vehicle have been examined by comparing the cases with and without a GF. The GF increases the downforce by about 24% compared to a limited increase in the drag force. A fluid dynamic analysis has been carried out to understand the physical mechanisms of the flow interaction induced to the other components. The GF, in fact, enhances the ground effect, by redistributing the flow that interacts differently with the other components i.e., the wheel zone. Full article
(This article belongs to the Special Issue Aerodynamics Modeling)
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