New Developments and Researches in Several Aspects of Ground Vehicle Aerodynamics: Aerodynamic Optimization, Wind Noise and Thermal Management
A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "E: Electric Vehicles".
Deadline for manuscript submissions: closed (25 November 2021) | Viewed by 7361
Special Issue Editor
Special Issue Information
Dear Colleagues,
The effects of airflow over objects has fascinated scientist for many generations, leading to numerous mathematical models and to a large variety of experimental investigations. With the increased volume of ground transportation, the study of vehicle aerodynamics gained momentum to improve the vehicle performance, comfort, and environmental signature of the related industry. The first and most logical focus was on reducing the air resistance (drag) of ground vehicles, such as passenger cars, trucks, or even trains, which lead to improved fuel economy and reduced air pollution. However, passenger comfort, due to wind noise, buffeting or flow separation (as in convertible cars) also received increased notice, mainly from the vehicle manufacturer perspective. Improvement in these areas lead to increased vehicle speeds, and performance considerations, such as handling and stability, drove the focus on investigating aerodynamic downforce and its balance on the vehicle wheels. The need to quantify and understand the effects of the airflow on the various vehicle shapes led to the development of experimental methods in the form of road testing and wind tunnel testing, and to the development of supporting instrumentation. In recent years, developments in computer-aided design (CAD) and in computational fluid dynamics (CFD) provided an additional tool for estimating and understanding the sources of aerodynamic loads on a large variety of vehicles. One of the most intriguing developments in recent years is the combination of CAD and CFD with optimization methods, to automate the process of vehicle shape development. In this special issue of Energies, the focus is on all the vehicle-aerodynamics-related topics mentioned so far and on the many elementary fluid dynamic problems shared with the airplane or ship design disciplines. As such, the importance of large laminar flow regions, or the control of transition into turbulent flow regions, and the active or passive control of the resulting flow separation or vortex flow, should be included as well.
Topics include, but are not limited to, the following research topics:
- Vehicle aerodynamics from a historical point of view;
- Vehicle-shape-related studies: passenger cars, trucks, motorcycles/scooters, trains, etc.;
- Competition vehicles (race cars) and study of downforce;
- Vortex flow management (to increase downforce or reduce acoustic effects);
- Vehicle interactions (overtaking, following, platoons);
- Heat transfer and cooling: surface heat exchangers, cooling system optimizations (inlets, diffusers fans, etc.);
- Wind tunnels, moving ground, blockage, sensors and measurement techniques;
- Vehicle related CFD (grid, shape optimization, aero/CAD interaction, etc.);
- Flow control over vehicle components: flow-separation, laminar/turbulent transition, active control, vortices etc.;
- Acoustics: buffeting, mirror noise, convertible noise/flow, etc.
Prof. Dr. Joseph Katz
Guest Editor
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Keywords
- vehicle aerodynamics
- fluid dynamic modeling and testing
- computational fluid Mechanics
- wind tunnel testing
- flow separation
- aero acoustics
- heat transfer and cooling
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