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Investigation of Aerodynamic Influence on Truck Platooning
Technical Paper
2015-01-2895
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper investigates the aerodynamic influence of multiple on-highway trucks in different platooning configurations. Complex pressure fields are generated on the highways due to interference of multiple vehicles. This pressure field causes an aerodynamic drag to be different than the aerodynamic drag of a vehicle in a no-traffic condition. In order to study the effect of platooning, three-dimensional modeling and numerical simulations were performed using STAR-CCM+® commercial Computational Fluid Dynamics (CFD) tool. The aerodynamic characteristics of vehicles were analyzed in five different platooning configurations with two and three vehicles in single and multiple lanes.
A significant Yaw Averaged Aerodynamic Drag (YAD) reduction was observed in both leading and trailing vehicles. YAD was based on the average result of three different yaw angles at 0°, −6° and 6°. In single-lane traffic, YAD reduction was up to 8% and 38% in leading and trailing vehicles, respectively. In both leading and trailing vehicles, YAD reduction effects dropped with higher separation distances. In contrast, a trailing vehicle following the leading vehicle in the immediate next separate lane showed a YAD reduction up to 3% in the leading truck at lower separation distances. In further increases of the separation distance, no YAD benefit was observed in the leading vehicle. On the other hand, the trailing vehicle YAD was reduced up to 15% with increases in the separation distance. In side-by-side vehicle configurations, negative YAD impact was observed in the leading vehicles. Three different side-by-side configurations were studied and results are presented in the form of both YAD and fuel savings.
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Citation
Vegendla, P., Sofu, T., Saha, R., Madurai Kumar, M. et al., "Investigation of Aerodynamic Influence on Truck Platooning," SAE Technical Paper 2015-01-2895, 2015, https://doi.org/10.4271/2015-01-2895.Also In
References
- Smith , J. , Mihelic , R. , Gifford , B. , and Ellis , M. Aerodynamic Impact of Tractor-Trailer in Drafting Configuration SAE Int. J. Commer. Veh. 7 2 619 625 2014 10.4271/2014-01-2436
- Lammert , M. , Duran , A. , Diez , J. , Burton , K. et al. Effect of Platooning on Fuel Consumption of Class 8 Vehicles Over a Range of Speeds, Following Distances, and Mass SAE Int. J. Commer. Veh. 7 2 626 639 2014 10.4271/2014-01-2438
- Johansson , KH. Cooperative driving for road goods transportation: Optimization and control The 33 rd Chinese Control Conference July 28 30 2014 Nanjing
- Lammert , M. , Gender , J. Reducing fuel consumption through semi-automated platooning with class 8 tractor trailer combinations Automated Vehicle Symposium 2014 San Francisco, CA
- Romberg , G. , Chianese , F. , and Lajoie , R. Aerodynamics of Race Cars in Drafting and Passing Situations SAE Technical Paper 710213 1971 10.4271/710213
- Zabat , M. , Stabile , N. , Frascaroli , S. , Browand , F. 1995 The aerodynamic performance of platoons; A final report PATH Report UCB-ITS-PRR-95-35
- Bogdan , M. , Browand , F. The Aerodynamic Forces on Misaligned Platoons California PATH Research Report UCB-ITS-PRR-98-4 1998 1055-1425
- Alam , Al A. , Gattami , A. , Johansson , K. An Experimental Study on the Fuel Reduction Potential of Heavy Duty Vehicle Platooning 13 th International IEEE Conference on Intelligent Transportation Systems (ITTSC) 2010 10.1109/ITSC.2010.5625054
- Sofu , T. Aerodynamics and underhood thermal analysis of heavy/medium vehicles US DOE Annual Report for Vehicle Technology Program 2013
- Vegendla , S.N.P. , and Sofu , T. Aerodynamics and underhood thermal analysis of heavy/medium vehicles US DOE Annual Report for Vehicle Technology Program 2014
- STAR-CCM+-v9.06.011, User Guide 2014
- Vegendla , S.N.P. , Heynderickx , G.J. , Marin , G.B. Micromixing effects on series-parallel and autocatalytic reactions in a turbulent single-phase gas flow Chemical Engineering Science 2010 4621 4629
- SAE International Surface Vehicle Recommended Practice Guidelines for Aerodynamic Assessment of Medium and Heavy Commercial Ground Vehicles Using Computational Fluid Dynamics SAE Standard J2966 Sept. 2013
- Connor , C. , Kharazi , A. , Walter , J. , and Martindale , B. Comparison of Wind Tunnel Configurations for Testing Closed-Wheel Race Cars: A CFD Study SAE Technical Paper 2006-01-3620 2006 10.4271/2006-01-3620