Rychtmyer-Meshkov instability and solid $^4$He melting driven by acoustic pulse
| dc.creator | Gov, Nir | |
| dc.date | 2003-02-10 | |
| dc.date | 2003-12-09 | |
| dc.date.accessioned | 2026-07-07T02:49:37Z | |
| dc.date.available | 2026-07-07T02:49:37Z | |
| dc.description | Recent experiments have shown remarkable dynamics of solid $^4$He melting and growth, driven by the normal incidence of an acoustic pulse on the solid-liquid interface. The theory of solid growth/melting, driven by the radiation pressure of the acoustic pulse, accounts well for the temperature dependence of the measured data. There is however an observed source of extra, temperature-independent, melting. We here propose that this extra melting is due to solid-liquid mixing (and consequent melting) at the interface, in a process similar to the Richtmyer-Meshkov instability: Initial undulations of the rough interface, grow when accelerated by the acoustic pressure oscillations. This model predicts a temperature-independent extra melting and its dependence on the acoustic power, which is in agreement with the measured data. | |
| dc.description | 5 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0302183 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0302183 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/20866 | |
| dc.subject | Condensed Matter | |
| dc.title | Rychtmyer-Meshkov instability and solid $^4$He melting driven by acoustic pulse | |
| dc.type | text |