Aerodynamic noise prediction using parallel methods on unstructured grids

Lyle N. Long; Frederic Souliez; Anupam Sharma

Aerodynamic noise prediction using parallel methods on unstructured grids

Lyle N. Long, Frederic Souliez, Anupam Sharma

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

Abstract

Aerodynamic noise from a cone in a uniform flow is computed using the Ffowcs Williams-Hawkings (FW-H) equation. The time accurate flow data is obtained using a finite volume flow solver on an unstructured grid. The FW-H equation is solved for surface integrals over a permeable surface away from the cone. Predictions from the FW-H code are compared with direct calculations by the flow solver at a few observer locations inside the computational domain. A very good qualitative match is obtained. Sound directivity patterns in the azimuthal and in the longitudinal directions are presented. The FW-H code is also validated against a model problem of a monopole in a uniform mean flow.

Original language	English (US)
State	Published - Dec 1 2001
Event	7th AIAA/CEAS Aeroacoustics Conference and Exhibit, 2001 - Maastricht, Netherlands Duration: May 28 2001 → May 30 2001

Other

Other	7th AIAA/CEAS Aeroacoustics Conference and Exhibit, 2001
Country/Territory	Netherlands
City	Maastricht
Period	5/28/01 → 5/30/01

All Science Journal Classification (ASJC) codes

Aerospace Engineering
Electrical and Electronic Engineering
Mechanical Engineering
Acoustics and Ultrasonics

Cite this

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title = "Aerodynamic noise prediction using parallel methods on unstructured grids",

abstract = "Aerodynamic noise from a cone in a uniform flow is computed using the Ffowcs Williams-Hawkings (FW-H) equation. The time accurate flow data is obtained using a finite volume flow solver on an unstructured grid. The FW-H equation is solved for surface integrals over a permeable surface away from the cone. Predictions from the FW-H code are compared with direct calculations by the flow solver at a few observer locations inside the computational domain. A very good qualitative match is obtained. Sound directivity patterns in the azimuthal and in the longitudinal directions are presented. The FW-H code is also validated against a model problem of a monopole in a uniform mean flow.",

author = "Long, {Lyle N.} and Frederic Souliez and Anupam Sharma",

year = "2001",

month = dec,

day = "1",

language = "English (US)",

note = "7th AIAA/CEAS Aeroacoustics Conference and Exhibit, 2001 ; Conference date: 28-05-2001 Through 30-05-2001",

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TY - CONF

T1 - Aerodynamic noise prediction using parallel methods on unstructured grids

AU - Long, Lyle N.

AU - Souliez, Frederic

AU - Sharma, Anupam

PY - 2001/12/1

Y1 - 2001/12/1

N2 - Aerodynamic noise from a cone in a uniform flow is computed using the Ffowcs Williams-Hawkings (FW-H) equation. The time accurate flow data is obtained using a finite volume flow solver on an unstructured grid. The FW-H equation is solved for surface integrals over a permeable surface away from the cone. Predictions from the FW-H code are compared with direct calculations by the flow solver at a few observer locations inside the computational domain. A very good qualitative match is obtained. Sound directivity patterns in the azimuthal and in the longitudinal directions are presented. The FW-H code is also validated against a model problem of a monopole in a uniform mean flow.

AB - Aerodynamic noise from a cone in a uniform flow is computed using the Ffowcs Williams-Hawkings (FW-H) equation. The time accurate flow data is obtained using a finite volume flow solver on an unstructured grid. The FW-H equation is solved for surface integrals over a permeable surface away from the cone. Predictions from the FW-H code are compared with direct calculations by the flow solver at a few observer locations inside the computational domain. A very good qualitative match is obtained. Sound directivity patterns in the azimuthal and in the longitudinal directions are presented. The FW-H code is also validated against a model problem of a monopole in a uniform mean flow.

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M3 - Paper

AN - SCOPUS:84896814507

T2 - 7th AIAA/CEAS Aeroacoustics Conference and Exhibit, 2001

Y2 - 28 May 2001 through 30 May 2001

ER -

Aerodynamic noise prediction using parallel methods on unstructured grids

Abstract

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All Science Journal Classification (ASJC) codes

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