|
Rear diffuser
A rear diffuser can reduce drag when it has a small area ratio (equals small angle). It works the same way as a boattail, increasing base pressure. However, it is not effective if the underbody is smooth. See: "The Aerodynamic Performance of Automotive Underbody Diffusers" SAE 980030 and "Selecting Automotive Diffusers to Maximise Underbody Downforce" SAE 2000-01-0345.
|