Truck Trailer Aerodynamic Design Optimization Through CFD Simulations

Buscariolo, Filipe Fabian; Magazoni, Felipe; Volpe, Leonardo José Della; Maruyama, Flavio; Alves, Julio Cesar Lelis

doi:10.4271/2019-36-0103

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…Combining the vehicle-side technologies, including aerodynamics, tires, and total weight reduction, 11.9% and 8.4% fuel savings can be achievable over the long-haul and regional delivery cycles, respectively. Also, the drag coefficient can be decreased by up to 21% over the long-haul cycles [45,86,87,90,93,97]. The schematic of the technologies to reduce the aerodynamic and tire rolling resistances in both tractor and trailer sides is shown in Figure 13.…”

Section: Vehicle Side Technologiesmentioning

confidence: 99%

Advances in Vehicle and Powertrain Efficiency of Long-Haul Commercial Vehicles: A Review

Balazadeh Meresht,

Moghadasi,

Munshi

et al. 2023

Energies

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Mitigating CO2 emissions from long-haul commercial trucking is a major challenge that must be addressed to achieve substantial reductions in greenhouse gas (GHG) emissions from the transportation sector. Extensive recent research and development programs have shown how significant near-term reductions in GHGs from commercial vehicles can be achieved by combining technological advances. This paper reviews progress in technology for engine efficiency improvements, vehicle resistance and drag reductions, and the introduction of hybrid electric powertrains in long-haul trucks. The results of vehicle demonstration projects by major vehicle manufacturers have shown peak brake thermal efficiency of 55% in heavy-duty diesel engines and have demonstrated freight efficiency improvements of 150% relative to a 2009 baseline in North America. These improvements have been achieved by combining multiple incremental improvements in both engine and vehicle technologies. Powertrain electrification through hybridization has been shown to offer some potential reductions in fuel consumption. These potential benefits depend on the vehicle use, the details of the powertrain design, and the duty cycle. To date, most papers have focused on standard drive cycles, leaving a research gap in how hybrid electric powertrains would be designed to minimize fuel consumption over real-world drive cycles, which are essential for a reliable powertrain design. The results of this paper suggest that there is no “one-size-fits-all” solution to reduce the GHGs in long-haul trucking, and a combination of technologies is required to provide an optimum solution for each application.

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Section: Vehicle Side Technologiesmentioning

confidence: 99%

Advances in Vehicle and Powertrain Efficiency of Long-Haul Commercial Vehicles: A Review

Balazadeh Meresht,

Moghadasi,

Munshi

et al. 2023

Energies

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“…Some studies to investigate the aerodynamic behavior on different driving conditions of large vehicles such as a bus, truck, and trailer have been conducted to study, optimize and experimentally test the aerodynamic characteristics of the vehicle [11][12][13][14][15]. There are also numerous existing numerical and experimental research to investigate the effect of crosswind on a double-deck bus, moving vehicle under crosswind, vulnerability assessment of crosswind and even on passenger trains [16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Aerodynamic Characteristics of Overtaking Bus under Crosswind: CFD Investigation

Yudianto

Sofyan

Gunadi

et al. 2022

CFDL

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The presence of other vehicles, travelling together on the road, highly contributes to the condition on the realistic air flow direction. The position alteration of other vehicles generates different airflow direction which is unpredictable experienced by the vehicle under investigation. It considerably affects the stability of a vehicle having large size of the body. The purpose of the study was to investigate the aerodynamic response of a detailed bus model in overtaking process with the interference of crosswind. Fluidic simulation was performed to investigate the air flow behavior imposed on the bus by means of Computational Fluid Dynamics (CFD) analysis. A scaled bus model was used in the simulation with the different positions representing the buses during the overtaking process. The coefficient X/L was introduced to realize the vehicle position during the overtaking process. The results discussed the alteration of drag force coefficient, lift force coefficient, side force coefficient, during the position on overtaking process. The resulting turbulence kinetic energy around the bus was also discussed by comparing the case without crosswind and when the yaw angle was 30°. The most prominent aerodynamic forces alteration occurs when the overtaking process was at X/L=1. Further explanation about the pressure coefficient at the surface of the bus and the area around the vehicle was investigated at this position. The accuracy of numerical results calculation was verified by comparing the result of simulation and experimental testing of Cd and Cl with the percentage of deviation 0.37% and 2.90% respectively.

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Truck Trailer Aerodynamic Design Optimization Through CFD Simulations

Cited by 2 publications

References 4 publications

Advances in Vehicle and Powertrain Efficiency of Long-Haul Commercial Vehicles: A Review

Advances in Vehicle and Powertrain Efficiency of Long-Haul Commercial Vehicles: A Review

Aerodynamic Characteristics of Overtaking Bus under Crosswind: CFD Investigation

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