CFD Prediction of the Flow inside the Damper by the Use of LES Model

Abstract

There are two sources that contribute to the definition of the excitation spectrum in the privacy of the dynamic behavior of the suspension level. One of the cases concerns the induced due to the asperities effect of the tread in contact with the tire. A second source of disturbance comes from the turbulence effect coming from the vehicle shell aerodynamic imperfection. The analysis refers to the behavior of fluid flow within the damper, at the interstitial area of the passage, and the pilot floating pill. For this, it was necessary that the area of interest be treated in an unsteady regime, with moving wall and deformable mesh.