Patent ID: 6088521
Filing Date: 2000-07-11
Classification: G01M,G06F,Y02T

Abstract:
A method for generating predicted wind noise within a passenger compartment of an automotive vehicle from a computer aided design (CAD) model representative of the vehicle without use of a wind tunnel, the method comprising the steps of:preparing a CAD model of a desired portion of the vehicle;creating a computational mesh of the desired portion of the vehicle design from the CAD model;computing a transient flow over the desired portion using the computational mesh;extracting a set of aerodynamic data from at least one predetermined area of the desired portion of the CAD model form the transient flow;generating a virtual representation of wind noise at a predetermined location with respect to the CAD model based upon the set of aerodynamic data; andproducing an acoustic representation of the virtual representation of wind noise by playing the virtual representation through at least one speaker.