作者: Masahide Murakami , Toru Furukawa , Masane Maki , Junichi Fujiyama
DOI: 10.1016/S0894-1777(02)00131-0
关键词: Helium 、 Second sound 、 Thermal shock 、 Superfluid helium-4 、 Thermodynamics 、 Materials science 、 Free surface 、 Temperature measurement 、 Pressure measurement 、 Shock wave 、 Atomic physics
摘要: Transient evaporation phenomena in superfluid helium (He II, T < 2.17 K) environment are investigated. We can take such great advantages of He II that a practically pure vapor-liquid system be realized the experimental cell because all gaseous components except frozen state and temperature shock wave used as pulsed heat source for evaporation. Evaporation is caused by incidence second sound thermal onto free surface. The whole gas-dynamic visualized with laser holographic interferometer measured superconductive thermometers pressure transducers well newly developed hot wire. It seen turns into weak wave. confirmed Rankine-Hugoniot relation holds among quantities portion. condensation coefficient obtained from comparison data slip boundary condition at evaporating interface derived kinetic theory gases