公开(公告)号：US20230244839A1

公开(公告)日：2023-08-03

申请号：US17590041

申请日：2022-02-01

Applicant: Dassault Systemes Simulia Corp.

Inventor： Damiano Casalino ,  Wouter van der Velden

IPC: G06F30/28

CPC classification number: G06F30/28 ,  G06F2119/10

Abstract: Techniques for conducting an air flow simulation for a wind turbine are described. The techniques include importing a file containing a digitized representation of a three-dimensional blade geometry, extracting from the file, blade constructive parameters, and calculating a low-order air flow past a wind-turbine that includes the blade, based on a Blade Element Momentum Theory (BEMT) to determine sectional angle of attack and free-stream velocity, boundary layer transition, and acoustic noise results. The techniques also include performing air flow simulation for a given number of blade sections, and generating virtual microphone rings. The process also includes computing noise spectra at the virtual microphone rings and blending the noise spectra generated and generating synthetic noise signals from each section by inverse Fourier transform of the noise spectra and converting the noise spectra into an audio track.