Aerodynamic drag reduction is key for the automotive sector

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In 2023 it was announced that "80% of new cars and 70% of new vans sold in Great Britain are set to be zero emission by 2030, increasing to 100% by 2035."

 This mandate dictates that improved vehicle efficiency needs to be addressed. Advances in technology, including computer simulations and wind tunnel testing will play a crucial role in achieving these improvements.

   Aerodynamics is key with increasing speed due to their exponential relationship. When the speed of a vehicle doubles, the aerodynamic force quadruples. Using a data driven approach to achieve an aerodynamic drag reduction, fuel consumption can be improved or battery range increased without altering the vehicle's design. The graph above illustrates the impact of reducing the drag coefficient from 0.8 to 0.6 (achieved through aerodynamic development). As a result, the force needed to reach 70 mph is reduced by 25%, therefore improved efficiency and longer ranges.

When investigating drag reduction, we can apply basic principles of sectional analysis to reduce areas of flow separation. The image above illustrates how streamlining to maintain flow attachment can reduce drag by a factor of 10.

As automotive aerodynamic consultants, we understand that your brand has an identity. We team up with stylists to successfully improve the aerodynamic performance of a vehicle without altering the intended appearance and expression.