Abstract
Heat transport mechanisms of liquid column oscillated forcedly in a straight channel with square cross section have been investigated experimentally. The channel was initially evacuated, and ethanol was charged to form a liquid column. Vapor pressure, vapor temperature and wall temperature were measured for several oscillation frequencies and several positions of the tip of the liquid column oscillated forcedly. Based on these measurements, vapor mass fluctuations due to phase change were estimated. The effects of oscillation frequency and the position of the tip of liquid column on vapor mass fluctuation are discussed.
