細管流路内を往復振動する液柱が形成する液膜の厚さ分布

抄録

The thickness of the liquid film formed with the liquid column oscillation was experimentally investigated. The liquid column was sinusoidally oscillated for various oscillation frequencies of the liquid column under constant crank radius of an oscillator to simulate the flow phenomena in pulsating heat pipe. A horizontal circular glass capillary tube with an inner diameter of 2 mm was used as the test channel. The liquid film thickness was measured at various positions from the video of the liquid column tip tracked by a high-speed video camera, which revealed the effect of liquid column deceleration on the distribution of liquid film thickness.