The frequency dependence of critical-velocity behavior in the oscillatory flow of superfluid ⁴He through a 2 × 2-μm aperture in a thin foil

Physics & Astronomy

• critical velocity 100%
• foils 72%
• apertures 64%
• slip 35%
• energy dissipation 33%
• metal foils 27%
• superfluidity 25%
• temperature 24%
• dissipation 16%
• curvature 15%
• low frequencies 14%
• cycles 13%
• oscillations 13%

Chemical Compounds

• Foil 82%
• Velocity 69%
• Flow 53%
• Dissipation 45%
• Pressure 23%
• Energy 19%
• Time 14%

Engineering & Materials Science

• Metal foil 89%
• Temperature 33%
• Energy dissipation 28%