Aerodynamic Drag Reduction and Optimization of MIRA Model Based on Plasma Actuator
"...Specifically, drag reduction is better when the actuation is applied at four positions simultaneously.
The maximum drag reduction coefficient of the car is reduced by 13.17%..."
... This suggests that the plasma jet can obviously inhibit the flow separation in the tail of the vehicle and strengthen the aerodynamic characteristics of the vehicle
https://www.mdpi.com/2076-0825/9/3/64
Dielectric barrier discharge actuator for vehicle drag reduction at highway speeds
We propose and demonstrate
reduction of aerodynamic drag for a realistic geometry
at highway speeds ... the
measured drag reduced by over 14% at 26.8 m/s (60 mph) and over 10% at 31.3 m/s (70 mph) opening up realistic possibility of reasonable energy savings for full scale ground vehicles.
In addition, the power consumption data and drag reduction effectiveness for different input signals are also presented...
...Additionally, we also showed that
the actuator can save 2.7 % total
drag average per watt power consumed with AM input signal and save 2.1% total drag average per watt with continuous input signal..."
https://www.researchgate.net/publica...highway_speeds