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Title:

Concurrent identification of aero-acoustic scattering and noise sources at a flow duct singularity in low Mach number flow

Document type:
Zeitschriftenaufsatz
Author(s):
Sovardi, C.; Jaensch, S.; Polifke, W.
Abstract:
A numerical method to concurrently characterize both aeroacoustic scattering and noise sources at a duct singularity is presented. This approach combines Large Eddy Simulation (LES) with techniques of System Identification (SI): In a first step, a highly resolved LES with external broadband acoustic excitation is carried out. Subsequently, time series data extracted from the LES are post-processed by means of SI to model both acoustic propagation and noise generation. The present work studies...     »
Keywords:
Noise Sources; System Identication; Acoustic Scattering; Duct Acoustic
Dewey Decimal Classification:
620 Ingenieurwissenschaften
Journal title:
Journal of Sound and Vibration
Year:
2016
Journal volume:
377
Year / month:
2016-09
Quarter:
3. Quartal
Month:
Sep
Pages contribution:
90-105
Covered by:
Scopus; Web of Science
Language:
en
Fulltext / DOI:
doi:10.1016/j.jsv.2016.05.025
Publisher:
Elsevier BV
Date of publication:
01.09.2016
TUM Institution:
Professur für Thermofluiddynamik
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