Drag Reduction on Passenger Vehicles

Start date 01/01/2011
End date The project is closed: 01/06/2015

Research Motivating Problem:
Aerodynamics plays an essential role in the total driving resistance and hence fuel consumption of vehicles. New upcoming legislations on permissible CO2 – emissions and increasing fuel prices will push vehicle manufacturers to develop vehicles with a low fuel consumption. As a consequence the aerodynamic resistance has to be further reduced.

Research Question:

  • How can the rear wake be controlled and optimized such that air resistance is reduced and that fuel consumption and CO2 – emissions are lowered?

Deliverable(s):

  • Improved understanding of wake structures affecting aerodynamic forces and how to control the structures to reduce drag, while maintaining stability.
  • Improvement of experimental and numerical methodology for unsteady flow investigations.
​Vinnova, FFI
​Volvo Car Group

Published: Mon 23 Jun 2014.