Aerodynamics and Aeroacoustics of Vehicles, 4th Edition

A special issue of Fluids (ISSN 2311-5521).

Deadline for manuscript submissions: 24 December 2024 | Viewed by 1149

Special Issue Editor


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Guest Editor
1. Professor, Department of Mechanical Engineering & Engineering Science, The University of North Carolina at Charlotte, Charlotte, NC 28228-0001, USA
2. Coordinator, Digital Design Optimization Initiative, The University of North Carolina at Charlotte, Charlotte, NC 28228-0001, USA
3. Chair, SAE Road Vehicles Aerodynamics Committee, Warrendale, PA, USA
Interests: race and street car aerodynamics; aerodynamics and aeroacoustics of passenger and commercial vehicles; experimental and computational study of jets, wakes, and boundary layer flows; flow separation and control; aerodynamics of small aerial vehicles; shock–boundary layer interactions; data-driven turbulence modeling; machine learning methods in fluid flow classification
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Special Issue Information

Dear Colleagues,

Aerodynamics is a major factor in the design and development of vehicles, whether they are passenger or commercial road vehicles, race cars, trains, or air vehicles. In the early days of vehicle aerodynamics, the major goals were improved fuel economy and speed gain via drag reduction, as well as the improvement in occupant safety and comfort through minimizing the effects of aerodynamic instability. However, with the development of faster ground vehicles and high-speed road and train transportation infrastructures, the induction of wind noise due to aerodynamic flow instability, and with aeroacoustics becoming another significant design consideration, aeroacoustics has become integral to vehicle aerodynamic design. Though drag reduction and wind noise control are the primary considerations for passenger and commercial vehicles, race cars and high-performance road and street cars require the creation of an aerodynamic downforce for better traction and cornering. Thus, aerodynamics has become the single most important aspect in the design of race and performance vehicles. In addition, it was recently observed that significant drag reduction and, hence, improved fuel economy can be achieved when road vehicles are driven in convoy, which is called platooning; the same phenomenon is used in racing for increased speed, which is called drafting.

Road and track testing, wind-tunnel experiments, and computer simulations are the three tools used in vehicle aerodynamics. These approaches have their advantages and limitations. Correlating the results of these approaches for the same vehicle is challenging, and improving the correlations between these approaches is an ongoing process. As such, newer on-road and wind-tunnel measurement techniques and CFD methodologies are continuously evolving. Additionally, in laboratory environments, efforts are ongoing to include the effects of real-life road conditions, such as the impact of wind gusts or crosswinds, on vehicle performance, stability, and control. In recent decades, considerable and ongoing improvements have been made in these areas.

We have planned a Special Issue of Fluids dedicated to recent developments in experimental and modeling methodologies in vehicle aerodynamics and aeroacoustics. Potential broad topics for submission include the following:

  • Road, train, air, and race vehicle aerodynamics;
  • Computational fluid dynamics (CFD) modeling and simulation of vehicle internal and external flows;
  • Wind-tunnel testing of vehicles;
  • Road and track testing of ground vehicles;
  • Fundamentals of vehicle aerodynamics;
  • Drag reduction and flow control methodologies for vehicles;
  • Wind-tunnel aeroacoustic measurements and testing techniques;
  • Modeling and simulation of ground vehicle aeroacoustics;
  • Wind noise reduction methodologies;
  • Road vehicle platooning and driving in proximity in racing;
  • Crosswind stability of ground and aerial vehicles;
  • Replication of on-road conditions in wind-tunnel experiments;
  • CFD–wind-tunnel correlation of aerodynamic and aeroacoustic measurements;
  • Machine learning applications in vehicle aerodynamics and aeroacoustics;
  • Artificial intelligence-driven optimization of aerodynamic and acoustic performance;
  • Data-driven fluid mechanics and turbulence modeling for vehicle applications;
  • Reduced Order Methods (ROM) for efficient simulation of vehicle aerodynamics;
  • Integration of experimental data and CFD for enhanced predictive accuracy;
  • Advanced sensors and data acquisition techniques in vehicle aerodynamics and aeroacoustics;
  • Real-time aerodynamic and aeroacoustic feedback systems for vehicles;
  • Hybrid experimental-CFD approaches for vehicle aerodynamics and aeroacoustics;
  • High-performance computing (HPC) applications in vehicle fluid dynamics;
  • Development and validation of digital twins for vehicle aerodynamics and aeroacoustics.

Prof. Dr. Mesbah Uddin
Guest Editor

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Keywords

  • road, train, air, and race vehicle aerodynamics
  • computational fluid dynamics (CFD) modeling and simulation of vehicle internal and external flows
  • wind-tunnel testing of vehicles
  • road and track testing of ground vehicles
  • fundamentals of vehicle aerodynamics
  • drag reduction and flow control methodologies for vehicles
  • wind-tunnel aeroacoustic measurements and testing techniques
  • modeling and simulation of ground vehicle aeroacoustics
  • wind noise reduction methodologies
  • road vehicle platooning and driving in proximity in racing
  • crosswind stability of ground and aerial vehicles
  • replication of on-road conditions in wind-tunnel experiments
  • CFD–wind-tunnel correlation of aerodynamic and aeroacoustic measurements
  • machine learning applications in vehicle aerodynamics and aeroacoustics
  • artificial intelligence-driven optimization of aerodynamic and acoustic performance
  • data-driven fluid mechanics and turbulence modeling for vehicle applications
  • reduced Order Methods (ROM) for efficient simulation of vehicle aerodynamics
  • integration of experimental data and CFD for enhanced predictive accuracy
  • advanced sensors and data acquisition techniques in vehicle aerodynamics and aeroacoustics
  • real-time aerodynamic and aeroacoustic feedback systems for vehicles
  • hybrid experimental-CFD approaches for vehicle aerodynamics and aeroacoustics
  • high-performance computing (HPC) applications in vehicle fluid dynamics
  • development and validation of digital twins for vehicle aerodynamics and aeroacoustics

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Published Papers (1 paper)

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Research

27 pages, 14913 KiB  
Article
Numerical Evaluation of the Effectiveness of the Use of Endplates in Front Wings in Formula One Cars under Multiple Track Operating Conditions
by Aldo Saul Laguna-Canales, Guillermo Urriolagoitia-Sosa, Beatriz Romero-Ángeles, Miguel Martinez-Mondragon, Miguel Angel García-Laguna, Reyner Iván Yparrea-Arreola, Jonatan Mireles-Hernández, Francisco Carrasco-Hernández, Alejandro Urriolagoitia-Luna and Guillermo Manuel Urriolagoitia-Calderón
Fluids 2024, 9(10), 232; https://doi.org/10.3390/fluids9100232 - 3 Oct 2024
Viewed by 719
Abstract
The last change in the technical regulations of Formula One that came into force in 2022 brought with it significant changes in the aerodynamics of the vehicle; among these, those made to the front wing stand out since the wing was changed to [...] Read more.
The last change in the technical regulations of Formula One that came into force in 2022 brought with it significant changes in the aerodynamics of the vehicle; among these, those made to the front wing stand out since the wing was changed to a more straightforward shape with fewer parts but with no less efficiency. The reduction in its components suggests that if one part were to suffer damage or break down, the efficiency of the entire front wing would be affected; however, from 2022 to date, there have been occasions in which the cars have continued running on the track despite losing some of the endplates. This research seeks to understand the endplates’ impact on the front wing through a series of CFD simulations using the k-ω SST turbulence model. To determine efficiency, the aerodynamic forces generated on the vehicle’s front wing, suspension, and front wheels were compared in two different operating situations using a model with the front wing in good condition and another in which the endplates were removed. The first case study simulated a straight line at a maximum speed where the Downforce is reduced by 2.716% while the Drag and Yaw increase by 7.092% and 96.332%, respectively, when the model does not have endplates. On the other hand, the second case study was the passage through a curve with a decrease of 17.707% in Downforce, 6.532% in Drag, and 22.200% in Yaw. Full article
(This article belongs to the Special Issue Aerodynamics and Aeroacoustics of Vehicles, 4th Edition)
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