METHOD FOR PREDICTING TONAL AERODYNAMIC NOISE PRODUCED BY A COMPONENT FOR A MOTOR VEHICLE

Abstract

METHOD FOR PREDICTING TONAL AERODYNAMIC NOISE PRODUCED BY A COMPONENT FOR A MOTOR VEHICLE The present invention relates to a method for predicting aerodynamic noise produced by a component (4) for a motor vehicle (2), remarkable in that said method comprises the following steps: - performing a numerical simulation of fluid dynamics in steady state from a numerical model of the component; and - establishing a wall pressure distribution on a surface (6) of said component intended to be in contact with an airflow during the movement of the motor vehicle; and - evaluating the wall pressure distribution for the detection of an inflection point in said distribution, the noise prediction being based on said detection, where the presence of the inflection point indicates a risk of noise emanating from the component, while the absence of said inflection point indicates the absence of noise. (Figure to be published with the abbreviation: Figure 2)

Inventors

STOFFEL ARNAUD
MARGNAT FLORENT
PRAX CHRISTIAN
VAN HERPE FRANCOIS
CONDE VALENTIN

Assignees

STELLANTIS AUTO SAS
CENTRE NAT RECH SCIENT
ECOLE NAT SUPERIEURE DE MECANIQUE ET DAEROTECHNIQUE

Dates

Publication Date: 20260501
Application Date: 20240521
Priority Date: 20240521