Thermoacoustic Arrays.
Abstract
The generation of highly directive sound by thermal expansion of water was researched under the Contract and was shown, both theoretically and experimentally, to be possible. This report describes accomplishments to date in the theoretical category, i.e., the formulation of the thermoacoustic array problem in a simple inhomogeneous wave equation and its solutions for several initial conditions. Model tank experiments are described which use a small ruby laser operating in the conventional mode to produce a noise-like pulse absorbed in a copper sulfate solution. Acoustic energy was found to be generated by the thermoacoustic process, over a wide band governed by the frequencies contained in the noise-like laser pulse. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 30, 1973
- Accession Number
- AD0770846
Entities
People
- Thomas G. Muir
Organizations
- University of Texas at Austin