This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Fuel Efficiency Improvement of Commercial Vehicle by Investigating Drag Resistance
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 29, 2015 by SAE International in United States
Annotation ability available
Market driven competition in global trade and urgency for controlling the atmospheric air pollution are the twin forces, which have urged Indian automobile industries to catch up with the international emission norms. Improvement in the fuel efficiency of the vehicles is one way to bind to these stringent norms. It is experimentally proven that almost 40% of the available useful engine power is being consumed to overcome the drag resistance and around 45% to overcome the tire rolling resistance of the vehicle. This as evidence provides a huge scope to investigate the influence of aerodynamic drag and rolling resistances on the fuel consumption of a commercial vehicle.
The present work is a numerical study on the influence of aerodynamic drag resistance on the fuel consumption of a commercial passenger bus. The commercial Computational Fluid Dynamics (CFD) tool FLUENT™ is used as a virtual analysis tool to estimate the drag coefficient of the bus. Around 30% improvement in the drag coefficient is achieved by CFD driven changes in the bus design. Thus at 60 kmph vehicle speed, approximately 17% fuel consumption can be reduced.
CitationPatidar, A., Gupta, U., and Bansal, A., "Fuel Efficiency Improvement of Commercial Vehicle by Investigating Drag Resistance," SAE Technical Paper 2015-01-2893, 2015, https://doi.org/10.4271/2015-01-2893.
- Sherwood A. Wind Tunnel Tests of Traler-mobile Trailers University of Maryland Report No. 85 June 1953
- Flynn , H. , and Kyropoulos , P. Truck Aerodynamics SAE Technical Paper 620531 1962 10.4271/620531
- Drollinger , R. Heavy Duty Truck Aerodynamics SAE Technical Paper 870001 1987 10.4271/870001
- Roy , S. , and Srinivasan , P. External Flow Analysis of a Truck for Drag Reduction SAE Technical Paper 2000-01-3500 2000 10.4271/2000-01-3500
- Takeuchi T. , and Kohri I. Development of Truck and bus aerodynamics using computational fluid dynamics JSAE Review 18 2 188 1997
- Thorat Sachin , and Rao G Amba Prasad Computational Analysis of Intercity Bus with Improved Aesthetics and Aerodynamic Performance on Indian Roads IJAET 2 3 July September 103 109 2011
- Callen Mc Investigated on a Reduction in Drag Value until the Front Leading Edge 2004
- Saltzman Edwin J , Meyer Robert R , Callen Mc , and Salari K International Papers Carried Out Studies on Reducing the Drag of Trucks and Buses 2007
- Buresti G , Lungo G V , and Lombardi G Carried out a Research on Methods for the Drag Reduction of Bluff Bodies and Their Application to Heavy Road 2007
- Peterbilt Motors Company Presents a White Paper on Heavy Vehicle Aerodynamics and Fuel Efficiency 2009
- Fluent Inc. User Guide, Fluent 15 2014
- Automotive Vehicles - Determination of Road-Load Constants by Coast Down Test Method IS 14785 2000
- Schuring , D. , and Redfield , J. Effect of Tire Rolling Loss on Fuel Consumption of Trucks SAE Technical Paper 821267 1982 10.4271/821267
- Workshop Report Trucks and Heavy-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials U. S. Department of Energy Ferbuary 2013
- Woodrooffe John Reducing Truck Fuel Use and Emissions: Tires, Aerodynamics, Engine efficiency, and Side and Weight Regulations UMTRI - 2014-27 November 2014