Simulation of Aerodynamic Uplift Consequences on Pressure Repartition – Application on an Innovative Wiper Blade Design

For wiper systems on automobiles, poor wiping at high vehicle speed is mainly due to lack of pressure under the blade caused by aerodynamic lift. This paper describes a method using aerodynamic simulation results in a mechanical calculation. The calculation purpose is to determine the consequences of aerodynamic uplift on pressure repartition under a wiper blade positioned on a car windshield. We illustrate this method by comparing the results of an innovative wiper blade design with the one of a classical blade.