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Improving Aerodynamic Performance of a Truck: a Numerical Based Analysis

Johan Malmberg-2015-01-01-KTH Publication Database DiVA (KTH Royal Institute of Technology)
3

TL;DRAbstract

With a change in EU-legislation regarding the dimensions of heavy trucks [1] coming up, specifically allowing aerodynamic devices fitted to the back of trailers, the transportation industry is set to largely decrease its environmental impact in the near future. These aerodynamic devices have been researched for quite some time [2] but have not yet gained widespread market acceptance, partly because of the transportation industry’s complex owner structures and partly because of size regulations of the past. Though with this new legislation and other expected new EU-legislation on CO2 emissions, development of these aerodynamic devices looks set to become a field of intense study. The study explores different options regarding the influence of changing the rear shape of a generalized ground transportation system (GTS), a simplified model of a truck geometry. By changing the rear shape the drag force induced by the oncoming air flow was reduced, and the overall coefficient of drag (CD) va

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With a change in EU-legislation regarding the dimensions of heavy trucks [1] coming up, specifically allowing aerodynamic devices fitted to the back of trailers, the transportation industry is set to largely decrease its environmental impact in the near future. These aerodynamic devices have been researched for quite some time [2] but have not yet gained widespread market acceptance, partly because of the transportation industry’s complex owner structures and partly because of size regulations of the past. Though with this new legislation and other expected new EU-legislation on CO2 emissions, development of these aerodynamic devices looks set to become a field of intense study. The study explores different options regarding the influence of changing the rear shape of a generalized ground transportation system (GTS), a simplified model of a truck geometry. By changing the rear shape the drag force induced by the oncoming air flow was reduced, and the overall coefficient of drag (CD) va

Keywords

TruckAerodynamicsComputer scienceEnvironmental scienceAutomotive engineeringEngineeringAerospace engineering

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