Investigation of high-order cell-centered finite difference method for aeroacoustics

Yao Jin, Fei Liao, Jinsheng Cai, Philip J. Morris

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper discusses the potential of the application of a high-order cell-centered finite difference method (CCFDM) to problems in aeroacoustics. Based on an in-house code, a class of low-dissipation and low-dispersion compact schemes adopting optimization techniques is proposed for direct noise calculation of long-time long-distance sound propagation problems. These schemes are further validated with benchmark cases from a CAA workshop and the results indicate these schemes outperform the widely-used 5th-order upwind scheme. The second part of this paper investigates the capability of combining CCFDM with the FW-H acoustic analogy for the far-field noise prediction. Two example cases, including a tonal noise case (laminar flow past a 2D NACA0012 airfoil) and a broadband case (turbulent flow past a 3D rod-airfoil configuration), are both analyzed in detail. Good agreement with experimental data has been achieved, which indicates that the CCFDM coupled with the FW-H acoustic analogy has great potential in aeroacoustics.

Original languageEnglish (US)
Title of host publication25th AIAA/CEAS Aeroacoustics Conference, 2019
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105883
DOIs
StatePublished - Jan 1 2019
Event25th AIAA/CEAS Aeroacoustics Conference, 2019 - Delft, Netherlands
Duration: May 20 2019May 23 2019

Publication series

Name25th AIAA/CEAS Aeroacoustics Conference, 2019

Conference

Conference25th AIAA/CEAS Aeroacoustics Conference, 2019
CountryNetherlands
CityDelft
Period5/20/195/23/19

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering
  • Aerospace Engineering

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  • Cite this

    Jin, Y., Liao, F., Cai, J., & Morris, P. J. (2019). Investigation of high-order cell-centered finite difference method for aeroacoustics. In 25th AIAA/CEAS Aeroacoustics Conference, 2019 (25th AIAA/CEAS Aeroacoustics Conference, 2019). American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2019-2509