NON-STATIONARY THERMAL SELF-ACTION OF ACOUSTIC BEAMS CONTAINING SHOCK FRONTS IN THERMOCONDUCTING FLUID
Abstract
Non-stationary thermal self-action of a periodic or impulse acoustic beam containing shock fronts in a thermoconducting Newtonian fluid is studied. Self-focusing of a saw-tooth periodic and impulse sound is considered, as well as that of a solitary shock wave which propagates with the linear sound speed. The governing equations of the beam radius are derived. Numerical simulations reveal that the thermal conductivity weakens the thermal self-action of the acoustic beam.
Keywords:
non-stationary thermal self-focusing of an acoustic beam, shock acoustic wave, thermal lensDetails
- Issue
- Vol. 20 No. 2 (2016)
- Section
- Research article
- Published
- 2016-06-30
- DOI:
- https://doi.org/10.17466/TQ2016/20.2/P
- Licencja:
-
This work is licensed under a Creative Commons Attribution 4.0 International License.