Mathias Lemke
TU Berlin
https://www.vm.tu-berlin.de/institut_fuer_stroemungsmechanik_und_technische_akustik_ista/numerische_fluiddynamik/menue/ueber_uns/personen/dr_mathias_lemke/
Date(s) : 11/12/2020 iCal
14 h 30 min - 15 h 30 min
The identification of sound sources is a common problem in aero-acoustics. Different parameters are sought, among these are optimal signals and positions of the sources. An adjoint-based approach for optimal sound source identification, which employs computational aero-acoustic techniques, is presented. The approach allows considering complex situations, such as non-homogeneous base flow, thermal stratification as well as complex geometries.
Three different applications are presented as a proof-of-concept: optimization of a sound reinforcement setup, the localization of (moving) sound sources, and transition control by external acoustic forcing.sed methods significantly improve our abilities to understand and optimize acoustical and fluid dynamical systems.
Emplacement
Site Nord, CMI, Salle de Séminaire R164 (1er étage)
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