Case study – Vortex generators on Semi-Trailer

This trial sought to further quantify the fuel efficiency benefit of an aftermarket device (Airtabs™) fitted to reduce aerodynamic drag. The trial was conducted for one semi-trailer running a regional line haul application in Perth.
The Green Truck Partnership is designed to be a forum to objectively evaluate the merits of clean vehicle technologies and fuels by heavy vehicle operators. This report discusses the second trial of vortex generating aerodynamic devices. The device was fitted to a curtain-sided semi-trailer in 2015 and monitored over six months and over 80,000 kilometres (baseline + trial).
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