Abstract
Decomposition of radiating and non-radiating fluctuating components are important to the study of sound generation and acoustic feedback mechanisms present in a variety of free shear flows. Prior work primarily focused on the development of a decomposition operator for subsonic flows based on the acoustic dispersion relationship which is invariant to the position in time and space, such as found in Goldstein and Sinayoko et al. This paper presents the development of an operator that approximately decomposes linear fluctuating flow variables into their radiating and non-radiating components locally in time and space using the wavelet and curvelet transforms as a basis. The operator has been applied to a large-eddy simulation of a highly compressible under-expanded impinging jet to study its radiating and non-radiating fields.
Original language | English |
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Title of host publication | Advances in Computation, Modeling and Control of Transitional and Turbulent Flows |
Editors | Tapan K. Sengupta, Sanjiva K. Lele, Katepalli R. Sreenivasan, Peter A. Davidson |
Place of Publication | Singapore |
Publisher | World Scientific Publishing |
Pages | 388-396 |
Number of pages | 9 |
ISBN (Electronic) | 9789814635172 |
ISBN (Print) | 9789814635158 |
DOIs | |
Publication status | Published - 2016 |
Event | IUTAM Symposium on Advances in Computation, Modeling and Control of Transitional and Turbulent Flows - Goa, India Duration: 15 Dec 2014 → 18 Dec 2014 |
Conference
Conference | IUTAM Symposium on Advances in Computation, Modeling and Control of Transitional and Turbulent Flows |
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Country/Territory | India |
City | Goa |
Period | 15/12/14 → 18/12/14 |
Keywords
- Compressible jet flows
- Acoustic decomposition
- Large-eddy simulation
- Curvelets