The radiated noise from airfoils in realistic mean flows

David P. Lockard; Philip J. Morris

The radiated noise from airfoils in realistic mean flows

David P. Lockard, Philip J. Morris

Aerospace Engineering

Research output: Contribution to conference › Paper › peer-review

1 Scopus citations

Abstract

The long-term objective of the research described in this paper is to use computational aeroacoustics (CAA) methodology and parallel computers to increase the understanding of broadband blade noise. In a systematic progression towards simulations of completely realistic configurations and conditions, some simplified problems that address the important features of the flow are investigated. A twodimensional, 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. The effects of gust frequency and airfoil thickness are 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 language	English (US)
State	Published - 1997
Event	35th Aerospace Sciences Meeting and Exhibit, 1997 - Reno, United States Duration: Jan 6 1997 → Jan 9 1997

Other

Other	35th Aerospace Sciences Meeting and Exhibit, 1997
Country/Territory	United States
City	Reno
Period	1/6/97 → 1/9/97

All Science Journal Classification (ASJC) codes

Space and Planetary Science
Aerospace Engineering

Cite this

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title = "The radiated noise from airfoils in realistic mean flows",

abstract = "The long-term objective of the research described in this paper is to use computational aeroacoustics (CAA) methodology and parallel computers to increase the understanding of broadband blade noise. In a systematic progression towards simulations of completely realistic configurations and conditions, some simplified problems that address the important features of the flow are investigated. A twodimensional, 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. The effects of gust frequency and airfoil thickness are described. A multigrid method is used to obtain converged steady-state solutions before the gust is introduced in a source region inside the domain.",

author = "Lockard, {David P.} and Morris, {Philip J.}",

note = "Publisher Copyright: {\textcopyright} 1997, American Institute of Aeronautics and Astronautics, Inc.; 35th Aerospace Sciences Meeting and Exhibit, 1997 ; Conference date: 06-01-1997 Through 09-01-1997",

year = "1997",

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T1 - The radiated noise from airfoils in realistic mean flows

AU - Lockard, David P.

AU - Morris, Philip J.

PY - 1997

Y1 - 1997

N2 - The long-term objective of the research described in this paper is to use computational aeroacoustics (CAA) methodology and parallel computers to increase the understanding of broadband blade noise. In a systematic progression towards simulations of completely realistic configurations and conditions, some simplified problems that address the important features of the flow are investigated. A twodimensional, 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. The effects of gust frequency and airfoil thickness are described. A multigrid method is used to obtain converged steady-state solutions before the gust is introduced in a source region inside the domain.

AB - The long-term objective of the research described in this paper is to use computational aeroacoustics (CAA) methodology and parallel computers to increase the understanding of broadband blade noise. In a systematic progression towards simulations of completely realistic configurations and conditions, some simplified problems that address the important features of the flow are investigated. A twodimensional, 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. The effects of gust frequency and airfoil thickness are described. A multigrid method is used to obtain converged steady-state solutions before the gust is introduced in a source region inside the domain.

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M3 - Paper

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T2 - 35th Aerospace Sciences Meeting and Exhibit, 1997

Y2 - 6 January 1997 through 9 January 1997

ER -

The radiated noise from airfoils in realistic mean flows

Abstract

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All Science Journal Classification (ASJC) codes

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