Numerical evaluation of vehicles aerodynamics in platoon using CFD simulation

Scurtu, I L; Ghereș, M.

doi:10.1088/1757-899x/1220/1/012024

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…Second, many research institutions and universities are also actively studying the aerodynamic performance of cars. For example, institutions such as NASA 8 in the United States and Fraunhofer 9 in Germany are conducting research on vehicle aerodynamics and have proposed many new theories and methods. Many international universities have also set up related courses and majors, and has trained many professionals in this research direction 10 .…”

Section: Current Status Of Foreign Researchmentioning

confidence: 99%

Research on aerodynamic analysis of automobile driving based on Ansys Workbench

Ding

2023

Fourth International Conference on Computer Science and Communication Technology (ICCSCT 2023)

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The numerical simulation technology is mainly through the computational fluid dynamics (CFD) method, which can quickly and accurately simulate the aerodynamic performance of the vehicle at a specific speed, such as air resistance Cd, downforce Cl, etc. These simulation results can provide important references for automotive design and optimization, reduce trial and error costs, and improve automotive design efficiency. In this paper, CATIA software is used to design the simplified three-dimensional model of the car. Based on the basic theory of fluid mechanics, AnsysWorkbench software is used to analyze the aerodynamic simulation of the car in driving process. The data on resistance and downforce are obtained and analyzed for reference by car design department.

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Section: Current Status Of Foreign Researchmentioning

confidence: 99%

Research on aerodynamic analysis of automobile driving based on Ansys Workbench

Ding

2023

Fourth International Conference on Computer Science and Communication Technology (ICCSCT 2023)

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“…A computational fluid dynamics (CFD) model serves as a numerical tool to simulate the complex airflow dynamics resulting from the interaction of multiple vehicles. Numerous studies have utilized CFD to model HDV platooning, revealing that a platooning configuration significantly reduces aerodynamic drag [22,[28][29][30]. Smith et al [31] and Vegendla et al [32] reported simulated drag savings of up to 23% at a separation distance of 30 feet with two vehicles.…”

Section: Introductionmentioning

confidence: 99%

Impact of Platooning on Fuel Consumption in Heavy-Duty Vehicles: A Computational Fluid Dynamics Modeling Approach

Kim,

Kang,

Hwang

et al. 2024

Preprint

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Platooning represents a crucial strategy for mitigating emissions from heavy-duty vehicles (HDVs). This study evaluates the effects of platoon composition on the surrounding airflow utilizing a computational fluid dynamics (CFD) model, and quantifies the resultant fuel efficiency and CO2 emissions. This study examines fuel consumption data reconstructed from field experiments to validate the CFD model’s ability to accurately simulate drag forces within a homogeneous three-truck platoon. The potential for fuel savings was assessed based on CFD-simulated fuel consumption, taking into account various inter-vehicle distances and driving speeds. The model successfully reproduced the fuel consumption observed in a platooning formation comprising lead, middle, and trailing trucks, with an error margin below 6.2%. While the lead and middle trucks exhibited increased fuel consumption with greater inter-vehicle distances, the trailing truck showed decreased fuel consumption with specific distance-to-length ratios (D/L), followed by an increase from a D/L of 1.1. Additionally, a significant decrease in total fuel efficiency was noted for D/L ratios exceeding 1.5. Considering the diverse platooning scenarios analyzed, the study anticipates an annual reduction of up to 7 tons of CO2 equivalent per vehicle. By optimizing platooning configurations, this research contributes to enhancing fuel efficiency and reducing emissions from HDVs.

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Research on aerodynamic characteristics of vehicle platoon under crosswind conditions based on Ahmed body

Luo,

Li,

et al. 2023

HFF

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Purpose The purpose of this paper is to study the aerodynamic characteristics of Ahmed body in longitudinal and lateral platoons under crosswind by computational fluid dynamics simulation. It helps to improve the aerodynamic characteristics of vehicles by providing theoretical basis and engineering direction for the development and progress of intelligent transportation. Design/methodology/approach A two-car platoon model is used to compare with the experiment to prove the accuracy of the simulation method. The simplified Ahmed body model and the Reynolds Averaged N-S equation method are used to study the aerodynamic characteristics of vehicles at different distances under cross-winds. Findings When the longitudinal distance x/L = 0.25, the drag coefficients of the middle and trailing cars at β = 30° are improved by about 272% and 160% compared with β = 10°. The side force coefficients of the middle and trailing cars are increased by 50% and 62%. When the lateral distance y/W = 0.25, the side force coefficients of left and middle cars at β = 30° are reduced by 38% and 37.5% compared with β = 10°. However, the side force coefficient of the right car are increased by about 84.3%. Originality/value Most of the researches focus on the overtaking process, and there are few researches on the neat lateral platoon. The innovation of this paper is that in addition to studying the aerodynamic characteristics of longitudinal driving, the aerodynamic characteristics of neat lateral driving are also studied, and crosswind conditions are added. The authors hope to contribute to the development of intelligent transportation.

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Numerical evaluation of vehicles aerodynamics in platoon using CFD simulation

Cited by 5 publications

References 8 publications

Research on aerodynamic analysis of automobile driving based on Ansys Workbench

Research on aerodynamic analysis of automobile driving based on Ansys Workbench

Impact of Platooning on Fuel Consumption in Heavy-Duty Vehicles: A Computational Fluid Dynamics Modeling Approach

Research on aerodynamic characteristics of vehicle platoon under crosswind conditions based on Ahmed body

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