Aerodynamics of trailer wheels in tandem: Experimental investigation into the effects of wheel rotation, trailer side-skirts, and wheel cavity covers

The increasing importance of drag reduction in commercial vehicles, traditionally motivated by rising energy costs, and more recently accelerated through policymaking in a bid to reduce emissions, has resulted in the development of increasingly sophisticated add-on aerodynamic devices for the semi-trailer. Of these devices, the greatest uptake...

Numerical analysis of side-skirt in dual rear axle condition

The global fuel consumption by Heavy duty vehicles is an important issue in every climate change summit. Aerodynamic drag consumes majority of fuel at highway speeds. Thus, it is important to strive hard to reduce drag using different techniques. WABCO's SideWing (side-skirt) is an air dam (aerodynamic device) placed along the sides of the...