Radiated noise from airfoils in realistic mean flows

David P. Lockard, Philip J. Morris

Research output: Contribution to journalArticle

93 Scopus citations

Abstract

The long-term objective of research described is to use computational aeroacoustics methodology and parallel computers to increase the understanding of broadband blade noise. In a systematic progression toward simulations of comletely realistic configurations and conditions, some simplified problems that address the important features of the flow are investigated. A two dimensional Navier-Stokes code, implemented using the message passing library and Fortran 90 on the IBM SP2, is used to perform the calculations. Results are presented for the interaction of a vortical gust and NACA airfoils, including nonliner effects. The influence of gust frequency and airfoil thickness is described. A multigrid method is used to obtain converged steady-state solutions before the gust is introduced in a source region inside the domain.

Original languageEnglish (US)
Pages (from-to)907-914
Number of pages8
JournalAIAA journal
Volume36
Issue number6
DOIs
StatePublished - Jun 1998

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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