Abstract: A wake convergence device for a vehicle is provided, wherein the vehicle has a vehicle top and first and second vehicle sides each extending from the vehicle top. The vehicle includes a vehicle leading edge, a vehicle trailing edge, and a vehicle longitudinal axis. The wake convergence device includes a first side panel positioned beside and spaced from the first vehicle side and including a first side panel leading edge that transitions from forward of the vehicle trailing edge to aft of the vehicle trailing edge. The wake convergence device also includes a second side panel positioned beside and spaced from the second vehicle side and including a first side panel leading edge that transitions from forward of the vehicle trailing edge to aft of the vehicle trailing edge.

Abstract: A wake convergence device for a vehicle is provided, wherein the vehicle has a vehicle top and first and second vehicle sides each extending from the vehicle top. The vehicle includes a vehicle leading edge, a vehicle trailing edge, and a vehicle longitudinal axis. The wake convergence device includes a first side panel positioned beside and spaced from the first vehicle side and including a first side panel leading edge that transitions from forward of the vehicle trailing edge to aft of the vehicle trailing edge. The wake convergence device also includes a second side panel positioned beside and spaced from the second vehicle side and including a first side panel leading edge that transitions from forward of the vehicle trailing edge to aft of the vehicle trailing edge.

Abstract: The present embodiments provide a wake convergence device that allows for the increase in pressure of the low pressure region created behind the “square-shaped” trailing edge of a trailer. The present embodiments also reduce the effect of the trailing edge tip vortices and re-streamlines the flow shedding off the sides and top of the semi-trailer. The wake convergence device mounts to an existing trailer with aerodynamic brackets and hinges in a manner that will not impede a trailer's current practical function for loading and unloading of its payload. The wake convergence device efficiently manages the trailer's trailing edge flow because of its positioning that allows a gap between the wake convergence device and the trailer sides or top.

Abstract: The present embodiments provide a wake convergence device that allows for the increase in pressure of the low pressure region created behind the “square-shaped” trailing edge of a trailer. The present embodiments also reduce the effect of the trailing edge tip vortices and re-streamlines the flow shedding off the sides and top of the semi-trailer. The wake convergence device mounts to an existing trailer with aerodynamic brackets and hinges in a manner that will not impede a trailer's current practical function for loading and unloading of its payload. The wake convergence device efficiently manages the trailer's trailing edge flow because of its positioning that allows a gap between the wake convergence device and the trailer sides or top.

Abstract: A model motion system for providing controlled motion of a vehicle model with wheels on is provided. The model motion system includes a pitch system coupled to the vehicle model with wheels on to control a pitch range of motion of the vehicle; a roll system coupled to the vehicle model with wheels on to control a roll range of motion of the vehicle; and a yaw system coupled to the vehicle model with wheels on to control a yaw range of motion of the vehicle. The pitch system, the roll system, and the yaw system control the respective ranges of motion of the vehicle model with wheels on.