Which condition is NOT likely to enhance wake turbulence?

Wake turbulence is generated by aircraft, particularly large and heavy ones, due to the airflow around their wings. The intensity of wake turbulence increases with the weight of the aircraft and its speed. Heavy aircraft create stronger vortices, while faster speeds generate more energy, enhancing the turbulence.

Clean wing configurations, which refer to the aerodynamic design of an aircraft's wings when they are not deployed with flaps or slats, typically minimize drag and can result in a smoother airflow, thereby reducing the severity of wake turbulence. At low altitudes, the effects of wake turbulence can be exacerbated due to ground proximity and other environmental factors. Thus, clean wing configurations are less likely to enhance wake turbulence compared to the other conditions listed.