Abstract
Numerical simulations of sound-fluid coupling at high temperature were conducted in this work to assist sonic fatigue experiments, where a high intensity sound input is imposed on the test specimen heated at 1200°C. Our analysis shows that the noise induced by the unsteady horn flow and thermal fields is negligible compared to the high intensity horn noise. Then sound propagation in a fluid-thermal coupled background flow is computed by using linearized Euler equations and geometrical shielding effect is calculted simultaneously. 2D and 3D simulations of reverberation room cases are conducted at different frequencies from 100Hz to 1kHz, which provides insights for engineering designs.
Original language | English |
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DOIs | |
Publication status | Published - 2014 |
Keywords
- Acoustic wave propagation
- Aerodynamics
- Architectural acoustics
- Aviation
- Fatigue testing
- Hypersonic vehicles
- Thermal fatigue
- Different frequency
- Engineering design
- Geometrical shielding
- High temperature
- Linearized EUler equation
- Reverberation rooms
- Sound propagation
- Thermal coupling
- Acoustic noise