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Dokumenttyp:
Zeitschriftenaufsatz 
Autor(en):
Sovardi, C.; Jaensch, S.; Polifke, W. 
Titel:
Concurrent identification of aero-acoustic scattering and noise sources at a flow duct singularity in low Mach number flow 
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 studi...    »
 
Stichworte:
Noise Sources; System Identication; Acoustic Scattering; Duct Acoustic 
Dewey Dezimalklassifikation:
620 Ingenieurwissenschaften 
Zeitschriftentitel:
Journal of Sound and Vibration 
Jahr:
2016 
Band / Volume:
377 
Jahr / Monat:
2016-09 
Quartal:
3. Quartal 
Monat:
Sep 
Seitenangaben Beitrag:
90-105 
Nachgewiesen in:
Scopus; Web of Science 
Sprache:
en 
Verlag / Institution:
Elsevier BV 
Publikationsdatum:
01.09.2016 
TUM Einrichtung:
Professur für Thermofluiddynamik