High-Power-Density High-Efficiency Carbon Nanotube Thermo-Acoustic (TA) Projectors
Abstract
Here we provide detailed model involving structure-fluid-acoustic interaction explaining the physical behavior of Thermoacoustic projectors (TAPs). Numerical model combines all the controlling steps from power input to acoustic wave generation to the propagation in outer fluid media. Power input to the computational domain is used to determine the frequency dependent temperature variation and thermal diffusive length which governs the generation of TA wave. TA wave is used as driving force to simulate the vibration of the structure and produce acoustic wave in outer fluids (air or water). A high power LF device (<180 Hz) ls fabricated to validate the model and demonstrate the low frequency projector. The detailed experimental analysis (vibration and acoustics) are performed on the fabricated devices in both air and water medium and results are compared with the predictions from modeling.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 22, 2019
- Accession Number
- AD1073887
Entities
People
- Prashant Kumar
- Shashank Priya
- Yongke Yan
Organizations
- Virginia Tech